Sinewing
n. 筋；肌腱；体力；精力\\nvt. 加强；使牢固
🗣️ 情景例句
I'm not upset at all.
一点也不。
What for?
何必呢？
There were hardly any trees on the island and there was no water, but this did not prove to be a problem.
岛上几乎没有一颗树，也没有淡水，但这不算什么问题。