1
use sth to do sth
use sth to do sth 结构表示“用某物做某事”；此句中 slingshot 是 use 的宾语。
He used a slingshot to knock the can off the fence.
他用弹弓把罐头从栅栏上打了下来。
弹弓
先理解核心含义，再看它在真实句子里的用法。
弹弓
a Y-shaped stick with elastic between the arms, used to shoot small stones
He used a slingshot to knock the can off the fence.
他用弹弓把罐头从栅栏上打了下来。
一种固定且常为三角形的部件,当球击中其最长边时会被强力弹回；通常位于下挡板上方、挡板与内球道之间,两个下挡板各有一个。
A stationary, often triangular object that launches any ball that hits its longest side back at a high force, now usually located above the flipper and between it and the inlane, with one each for both lower flippers.
由Y形棍和弹性材料组成的玩具；用于发射小石子
a plaything consisting of a Y-shaped stick with elastic between the arms; used to propel small stones
一种吊带比基尼。
A sling bikini.
一种环绕并连接双臂二头肌的宽幅织物器具,用于支撑最重的卧推。
An implement of a broad fabric worn around and connecting both bicipites brachii to support benching the most heavy weights.
The boy aimed his slingshot at the can and launched a pebble.
男孩用弹弓瞄准罐子，发射了一颗小石子。
My grandfather made a slingshot for me from a forked twig.
我爷爷用一根分叉的树枝给我做了一把弹弓。
They brought their slingshots to the beach to shoot at bottles.
他们带着弹弓去海滩朝瓶子射击。
use sth to do sth 结构表示“用某物做某事”；此句中 slingshot 是 use 的宾语。
He used a slingshot to knock the can off the fence.
他用弹弓把罐头从栅栏上打了下来。
with a slingshot 作方式状语，表示使用的工具；介词用 with，不用 by。
Kids often shoot small stones with a slingshot.
孩子们经常用弹弓射小石子。
过去分词短语 made from ... 在句中作后置定语，修饰 slingshot。
This is a slingshot made from a forked stick.
这是一个用树杈做的弹弓。
Not this
He made slingshot.
Use this
He made a slingshot.
slingshot（弹弓）是可数名词，单数形式前必须有冠词或限定词。汉语没有冠词，所以容易漏掉；加上 a 表示“一个”，句子才完整。
Not this
He is playing a slingshot.
Use this
He is playing with a slingshot.
slingshot 是具体的玩具/工具，不是球类运动或游戏名称，不能直接作 play 的宾语。表示“玩弹弓”要用 play with + 名词，with 引出玩耍的对象。
Not this
He shot at the bird by a slingshot.
Use this
He shot at the bird with a slingshot.
表示使用具体工具或器械时，介词用 with（“用……”），不用 by。by 常表示方式或交通工具，而 with 后接工具，所以 with a slingshot 才符合英语习惯。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
用弹弓射击
The boy learned to shoot a slingshot at cans in the backyard.
那个男孩学会了在后院用弹弓射击罐头。
使用弹弓
He used a slingshot to knock the apple from the tree.
他用弹弓把苹果从树上打了下来。
用弹弓瞄准某物
She aimed her slingshot at the target and pulled back the elastic.
她用弹弓瞄准靶子，拉紧了橡皮筋。
拉弹弓
He pulled back the slingshot and let go, sending the stone flying.
他拉紧弹弓然后松手，石子飞了出去。
弹弓的弹丸
Small stones are common slingshot ammunition.
小石子是常见的弹弓弹丸。
弹弓效应（借引力或惯性骤然加速）
The spacecraft used the planet's gravity in a slingshot effect to gain speed.
航天器利用行星引力的弹弓效应来加速。
弹弓机动（借天体引力改变速度和方向）
The probe performed a slingshot maneuver around Jupiter to reach Saturn.
探测器绕木星完成了一次弹弓机动，以抵达土星。
弹弓超车（比赛中借助气流或惯性的突然加速超越）
He made a slingshot pass on the final lap to win the race.
他在最后一圈用弹弓超车赢得了比赛。
Use slingshot naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
sling（甩）+ shot（射）：Y形弹弓把石子甩出去射击，两个词合起来就是弹弓。
语域：neutral 常见场景：日常对话、儿童玩具说明、户外游戏 该词在日常口语和一般书面语中都很常用，多用于描述儿童玩的弹弓；在正式或学术场合较少出现。
slingshot 结尾的 -shot 读作 /ʃɑt/，以下单词与其押韵：shot, hot, pot, not, knot（not 和 knot 同音，k 不发音）。注意 shoot /ʃuːt/ 拼写与 shot 相似，但读音不同。
Dictionary facts from ECDICT, WIKTIONARY.