🧩 词语组成解析
n. [建]柱身凹槽(或突筋)
🗣️ 情景例句
Please don't do it without asking.
未经允许请不要那么做。
A test pilot needs plenty of nerve.
飞行试飞员需要极大的勇气。
It did not take the firefighters long to put out the fire, and they at once started to look for causes of the fire.
消防队员没花多时间就把大火扑灭了，他们马上开始调查火灾发生的原因。