within reach (of sb/sth)
表示距离近、伸手就能拿到，也可引申为某目标可以实现。
Keep your passport within reach while you travel.
旅行时把护照放在随手可及的地方。
伸出；伸展动作；直河段；一段水道；横风航行；横风航程；臂展；伸展或延伸的动作；伸展。
The extent or range within which something can be reached, touched, or made effective; scope or influence.
常构成 within reach、out of reach 等短语。
伸展或延伸的动作；伸展。
The act of stretching or extending; extension.
有效范围
the limits within which something can be effective
用身体、肢体或所持或所投掷的物品触及或到达的能力。
The ability to reach or touch with the person, a limb, or something held or thrown.
作用区域
an area in which something acts or operates or has power or control:
伸展或扩展行动、影响等的能力；达成或管理的能力；力量或能力的范围。
The power of stretching out or extending action, influence, or the like; power of attainment or management; extent of force or capacity.
伸出动作
the act of physically reaching or thrusting out
范围；延伸；广阔；由此引申为应用、影响、结果、领域。
Extent; stretch; expanse; hence, application; influence; result; scope.
拳击手手臂伸出击中对手的距离。
The distance a boxer's arm can extend to land a blow.
侧风航行,非迎风航行的任何航向。
Any point of sail in which the wind comes from the side of a vessel, excluding close-hauled.
两次转向之间航行的距离。
The distance traversed between tacks.
可一次航行通过的水道段,常指河流或海湾的直段。
A stretch of a watercourse which can be sailed in one reach (in the previous sense). An extended portion of water; a stretch; a straightish portion of a stream, river, or arm of the sea extending up into the land, as from one turn to another. By extension, the adjacent land.
水道中急流或船闸之间平缓的一段。
A level stretch of a watercourse, as between rapids in a river or locks in a canal. (examples?)
大片水域或陆地。
An extended portion or area of land or water.
连接马车后轴与前横梁的杆或连杆。
The pole or rod connecting the rear axle with the forward bolster of a wagon.
The medicine is kept on a high shelf, out of the reach of children.
药品放在高架子上，儿童够不到的范围。
用法提示：本句中“reach”作名词，表示“可及的范围”，常与介词短语搭配使用。
AI contextual example
This problem is beyond the reach of current technology.
这个问题超出了当前技术的可及范围。
用法提示：本句中“reach”作名词，表示“能力或影响所及的范围”，常用于“beyond/within one’s reach”结构。
AI contextual example
The company's global reach has expanded rapidly over the past decade.
这家公司的全球影响力在过去十年迅速扩大。
用法提示：本句中“reach”作名词，表示“影响范围或覆盖范围”。
AI contextual example
表示距离近、伸手就能拿到，也可引申为某目标可以实现。
Keep your passport within reach while you travel.
旅行时把护照放在随手可及的地方。
表示因距离或能力所限而无法触及；out of reach of sb 指某人够不到。
The medicine should be kept out of reach of children.
这种药应该放在儿童够不到的地方。
多用于抽象意义，表示超出某人的能力、财力或权力范围。
A world cruise is beyond the reach of most people.
环球游轮旅行是大多数人负担不起的。
用复数 reaches 指河流、水域的一段，upper/lower 分别表示上游、下游。
Rare fish live in the upper reaches of the river.
稀有鱼类生活在河流的上游河段。
grammar · medium
易错句子The mountain top is in our reach now.
正确表达The mountain top is within our reach now.
reach 作名词表示“够得着的范围、能力所及”时，固定搭配是 within reach / within one's reach，不能用 in。汉语“在……范围内”直译成 in 是常见错误；表示相反意义则用 beyond reach 或 out of reach。只替换介词即可保留原意。
grammar · medium
易错句子The shop sells a wide reach of products.
正确表达The shop sells a wide range of products.
汉语“范围”对应两个不同的英语名词：reach 指伸手可及的距离、影响或能力所及的范围；range 指种类、变化的幅度。“各种各样的产品”强调种类多样，英语固定说 a wide range of，此处不能用 reach。只换名词即修正错误。
grammar · medium
易错句子What is the reach time of the flight?
正确表达What is the arrival time of the flight?
reach 作名词只表示“伸展（的动作）”“可及范围”或“河段”，并不表示“到达”这个动作。汉语“到达”可以当名词用，但英语中“到达时间”是 arrival time，不能把 reach 名词化来表示到达。只替换名词即可。
与'范围'相对，指界限
与'可及范围'相对，指分界线
'range' 通常指连续变化的幅度或距离，而 'reach' 强调可到达的极限。
'scope' 常指活动、话题或工作的范围，而 'reach' 指物理或影响力所能及的范围。
'extent' 强调程度或广度，而 'reach' 更侧重于实际可触及的界限。
无法触及；超出范围
The top shelf was out of reach for the child.
最上面的架子孩子够不着。
可及的；在伸手可及之处
Success is finally within reach.
成功终于近在咫尺。
超出范围；无法达到
The star was beyond reach of the telescope.
那颗恒星超出了望远镜的可及范围。
法律所及的范围
The criminals fled to a country beyond the reach of the law.
罪犯逃到了一个法律无法触及的国家。
长距离的触及范围
The company has a long reach in the global market.
这家公司在全球市场有广泛的影响力。
够不着；无法实现
The book was on the top shelf, out of my reach.
那本书放在顶层架子上，我够不着。
在伸手可及的距离内；可以达到
Success is finally within reach after years of hard work.
经过多年努力，成功终于近在咫尺。
无法达到；超出能力范围
For many, owning a home is beyond reach due to high prices.
对许多人来说，由于房价高昂，拥有住房是遥不可及的。
发长 /iː/ 音 (如 sea, tea)
Same pattern, same sound
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY, WORDNET.
广泛的影响范围
The internet has a wide reach across all age groups.
互联网在各个年龄段都有广泛的影响。
Watch the sound change