1
a crossbow
crossbow 是可数名词，单数形式前常用 a/an。
He bought a crossbow for target practice.
他买了一把弩用于射击练习。
弩
crossbows — plural of crossbow
先理解核心含义，再看它在真实句子里的用法。
弩
a weapon consisting of a bow mounted on a wooden stock that shoots short arrows called bolts or quarrels
He bought a crossbow for target practice.
他买了一把弩用于射击练习。
一种基于弓和箭的机械化武器,发射弩箭。
A mechanised weapon, based on the bow and arrow, that shoots bolts.
横向固定在木制枪托上的弩,带有引导箭矢的槽
a bow fixed transversely on a wooden stock grooved to direct the arrow (quarrel)
可手持的便携式弩炮。
A portable ballista that can be held in the hand.
The archer loaded a bolt into his crossbow before taking aim.
弓箭手在瞄准前把箭装上弩。
This old crossbow was used for hunting in the mountains.
这把旧弩过去在山里打猎时使用。
She bought a lightweight crossbow for target practice.
她买了一把轻便的弩用于打靶练习。
crossbow 是可数名词，单数形式前常用 a/an。
He bought a crossbow for target practice.
他买了一把弩用于射击练习。
定冠词 the 可用来特指或泛指弩这一类事物。
The crossbow was widely used in ancient warfare.
弩在古代战争中被广泛使用。
复数形式是 crossbows。
These crossbows are easy to carry.
这些弩很容易携带。
Not this
He shot the target with crossbow.
Use this
He shot the target with a crossbow.
crossbow 是可数名词单数，前面需要限定词（a/an/the/this 等）。中文没有冠词，学习者容易漏掉 a，加上 a 后名词短语才符合英语语法。
Not this
The soldiers used many crossbow in battle.
Use this
The soldiers used many crossbows in battle.
crossbow 是可数名词，many 后要用复数形式。中文名词不分单复数，所以容易忘记加 -s；改成 crossbows 才能与 many 搭配。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
发射弩
He aimed carefully before firing the crossbow.
他仔细瞄准后才发射弩。
给弩装箭
It takes time to load a crossbow properly.
给弩正确装箭需要时间。
弩箭
The crossbow bolt pierced the target.
弩箭穿透了靶子。
用弩打猎
In some areas, you may hunt with a crossbow during the season.
在某些地区，你可以在这个季节用弩打猎。
弩猎手
A crossbow hunter must know local regulations.
弩猎手必须了解当地法规。
弩是懦夫才用的武器。
He loaded the crossbow and aimed at the target.
他给弩装上箭，瞄准了目标。
Use crossbows naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把弓(bow)横(cross)着装在木柄上，就成了弩：cross + bow = crossbow。
语域：neutral 常见场景：历史、狩猎、体育竞技 该词为中性表达，不区分正式或非正式场合；通常用于讨论古代或中世纪的武器、现代射箭运动或狩猎活动。
bow、rainbow、elbow、snow、low 都以 /oʊ/ 音结尾，与 crossbow 的第二音节 /boʊ/ 对应。cow 虽然拼写也以 -ow 结尾，但读作 /kaʊ/，不押韵。另外，bow 在表示“鞠躬/低头”时读作 /baʊ/。
Dictionary facts from ECDICT, WIKTIONARY.