Masteries
n. 精通, 熟练（mastery的复数形式）
🗣️ 情景例句
Where's Mom?
妈妈呢？
Fish begins to stink at the head.
上梁不正下梁歪。
All the thing I had packed so carefully were soon in a dreadful mess.
所有细心包装好的东西一会儿工夫就乱成一团。