Pit props
礦井支撐物,坑木
?? 詞語組成解析
pit
[pit]
n. 井;煤礦;麻子;（賽車道旁的）修理加油站;
vt. 使有麻子;使有凹陷;
vi. 凹陷;起凹點;
n. 小道具；支柱；后盾（prop的復數）
??? 情景例句
My parents set aside a college savings fund for me.
我的父母為我存了一筆上學的費用。
By the way, before leaving this subject, I would like to add a few comments.
在結束這個問題之前順便一提，我希望能再提出一些看法。
To do this, he must be at least as knowledgeable as the dealer.
要做到這一點，他至少要像古董商一樣懂行。