Underframing
底層框架的材料或結(jié)構(gòu)部件
??? 情景例句
She went to a school-board meeting.
她去參加聯(lián)合校董會(huì)的會(huì)議。
There is a small choice in rotten apples.
朽木不可雕。
After having spent whole mornings on the river, I always go home with an empty bag.
我總是在河上呆上整整一上午，然后空著袋子回家。