Ribwork
n. 肋状结构, 罗纹组织
🗣️ 情景例句
You got it.
答对了。
He has lived here for a year.
他在这里住了一年了。[表示持续到现在的行为]
It took me ten minutes to persuade her to ring back later.
我用了10分钟的时间才说服她过会儿再来电话。