Matryoshka
n. 玩偶，嵌套玩偶
??? 情景例句
Read it.
讀出來吧。
I told him to stay till he comes back.
我告訴他留下來等他回來。
I can't understand why he is being so selfish. He isn't usually like that.
我不明白他此刻怎么這么自私。他平時不這樣。