Masteries
n. 精通, 熟练（mastery的复数形式）
🗣️ 情景例句
When's the last time you took a vacation?
上次你去度假是什么时候？
I don't care what you say.
我不在乎别人怎么说。
It's a good idea to hold such conferences.
召开这样的会议真是个好主意。