fold sth
及物用法，后接被折叠的物品。
She folded the letter and put it in the envelope.
她把信折好，放进了信封里。
折叠；对折
folding — present participle of fold
折叠起来；起皱；缠绕；环抱；翻拌；轻拌；让步；屈服；弃牌；退出赌局
to bend something such as paper or cloth so that one part lies on another
将(纸等薄材料)弯曲使其自身相贴。
To bend (any thin material, such as paper) over so that it comes in contact with itself.
把(动物)关进羊栏或围栏。
To confine (animals) in a fold, to pen in.
通过弯曲使(薄材料)形成适当的排列。
To make the proper arrangement (in a thin material) by bending.
纳入属灵的“羊群”或得救者的群体等。
To include in a spiritual ‘flock’ or group of the saved, etc.
将(手臂、蛇身等)缠绕或盘绕在某物周围以抱住或围住。
To draw or coil (one’s arms, a snake’s body, etc.) around something so as to enclose or embrace it.
将羊放到(一块土地)上以施肥。
To place sheep on (a piece of land) in order to manure it.
轻轻搅拌(半固体食材),动作如同将固体翻折。
To stir (semisolid ingredients) gently, with an action as if folding over a solid.
被折叠；形成褶皱。
To become folded; to form folds.
在论点或争论中让步。
To give way on a point or in an argument.
退出下注。
To withdraw from betting.
一般地退出或放弃。
To withdraw or quit in general.
失败、垮掉、解散。
To fail, to collapse, to disband.
(公司)停止营业。
Of a company, to cease to trade.
将(双臂、双手、翅膀等)交叉或叠放使彼此重叠。
To double or lay together (one’s arms, hands, wings, etc.) so as to overlap with each other.
用折叠的材料包裹,包扎,覆盖。
To enclose in a fold of material, to swathe, wrap up, cover, enwrap.
用双臂抱住,紧握,拥抱(另见 enfold)。
To enclose within folded arms, to clasp, to embrace (see also enfold).
掩盖,隐藏。
To cover up, to conceal.
将(一行文本)拆分为多行,以符合行长限制。
To split (a line of text) across multiple lines, to obey line length limitations.
一般现在时
He folds the paper every day.
他每天都叠纸。
一般过去时
She folded the letter yesterday.
她昨天把信折起来了。
现在完成时
They have folded the company.
他们已经关闭了公司。
常规动词
She folded the letter and put it in the envelope.
她把信折好放进了信封。
用法提示：此处fold是动词，表示将纸张对折或叠起。
Please fold the clothes before putting them in the drawer.
请把衣服叠好再放进抽屉。
用法提示：fold在句中作及物动词，表示折叠衣物。
He folded the map carefully to fit it in his pocket.
他小心地把地图折起来以便放进口袋。
用法提示：fold在此处作动词，意为“折叠”。
及物用法，后接被折叠的物品。
She folded the letter and put it in the envelope.
她把信折好，放进了信封里。
表示对折时常用 in half。
Fold the paper in half to make a card.
把纸对折，做成一张卡片。
fold up 强调折叠收起，宾语可放在 up 前或后。
He folded up the map and put it in his pocket.
他把地图叠好，放进了口袋。
不及物用法，说明某物可以折叠。
This chair folds flat for easy storage.
这把椅子可以折平，便于存放。
比 fold 更强调折出清晰的线痕，只有需要指出折痕的场合才可换用。
特指对半折叠，比 fold 更具体；仅在将物品折成两层的语境中替换。
语义更宽泛，不要求材料与自身接触；表达“折”的动作时须加具体语境，否则易歧义。
grammar · medium
易错句子Fold the paper into half.
正确表达Fold the paper in half.
汉语“对折”直译时容易把“折成一半”说成 into half。英语固定搭配是 fold ... in half，用 in 表示折后所成的状态（“成一半的样子”），而不是表示移动方向的 into。
grammar · medium
易错句子Fold the egg whites to the batter.
正确表达Fold the egg whites into the batter.
fold 表示把一种食材轻轻拌入另一种时，后面要用 into，强调从外并入、混合成一体；汉语“折到／拌到……里”容易误用 to，而 to 只表示方向终点，不能表示并入的结果。
grammar · medium
易错句子Put the fold clothes in the drawer.
正确表达Put the folded clothes in the drawer.
fold 是动词，作定语修饰名词时须用过去分词 folded，表示“已被折好的”这一状态；汉语“折好的衣服”没有词形变化，学习者容易直接把动词原形当形容词用。
针对“将（纸等薄材料）弯曲使其自身相贴”的“折叠”义项；unfold 指把已折叠的东西摊开、恢复平展状态，是最直接的反义词。
针对“折叠”义项；flatten 强调通过压或抚使有折痕、弯曲的薄材料变平，但更侧重消除褶皱，不一定指重新展开成原来的形状。
针对“折叠”义项；straighten 表示使弯曲的物体恢复平直状态，与 fold 的“弯曲”相对，但很少用于描述把折好的物品重新打开。
bend 只表示使物体弯曲，并不要求弯曲的两部分相贴；fold 则特指把纸、布等薄物折起使一面贴合另一面。
crease 强调压出或揉出折痕，常指无意或弄皱；fold 是有意地把薄料折叠起来。
把…翻拌入；调入
Fold in the beaten egg whites gently.
轻轻调入打发的蛋白。
折叠起来；折好
She folded up the map and put it in her bag.
她把地图折好放进了包里。
对折；折过来
Fold the paper over and press the crease.
把纸对折，压出折痕。
交叉双臂；抱臂
He folded his arms and waited.
他交叉双臂等着。
折叠收起
The table folds away when not in use.
这张桌子不用时可以折叠收起。
叠衣服
轻易放弃；很快屈服
The company folded like a cheap suit when the regulator arrived.
监管机构一来，那家公司就轻易屈服了。
在压力下崩溃；顶不住压力
He usually folds under pressure during exams.
他考试时通常顶不住压力。
把某人拥入怀中
She folded the tired traveler in her arms.
她把疲惫的旅人拥入怀中。
你得知道什么时候该坚持，什么时候该放弃。——出自肯尼·罗杰斯的名曲《The Gambler》，用牌局比喻人生，提醒人懂得及时止损。
He folded his hand and left the table.
他弃牌离开了牌桌。
把奶酪翻拌进去是什么意思？——出自加拿大喜剧《Schitt's Creek》的经典台词，角色反复追问菜谱里的模糊说法，成为网络迷因。
Fold the egg whites into the batter gently.
轻轻地把蛋清翻拌到面糊里。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.
He folded the laundry before going to bed.
他睡前把衣服叠好了。