Crankcase
n. 曲轴箱\\n[建] 曲柄箱
✅ 同义词
🗣️ 情景例句
It's no secret my wife is expecting a baby.
我老婆快生孩子了，这又不是什么秘密。
You bet!
当然！
The American president who fought for the freedom of slaves in the USA.
为美国奴隶的自由而战的美国总统。