Xenobiotics
宾主共栖生物
🗣️ 情景例句
when I was about eighteen years old.
那时我差不多十八岁。
I think it's going to be a nice day.
我想今天会是一个好天。
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。