Roaching
vt. 梳（发）使成拱状（roach的现在分词形式）
🗣️ 情景例句
Then, in college, I became good at it.
然后， 在大学， 我变得很精于数学。
The beginnings of all things are small.
万事开头小。
Japan is to the east of China.
日本在中国的东部。