Synapomorphy
n. [生]共源性状
🗣️ 情景例句
You pick him up.
把他抱起来呀。
Did you send it to him yourself?
你自己亲自送给他吗？
of a change of atmosphere, of a diversion of effort, is essential.
改变一下气氛，转移一下注意力，这是不可缺少的。