Microcapsules
微囊剂
🗣️ 情景例句
I'm having some trouble keeping food down.
我吃东西时感到困难。
It's hard to say.
很难说。
They sting or bite without provocation; they fly uninvited into our rooms on summer nights, or beat ageist our lighted windows.
它们无缘无故地又叮又咬；夏天的晚上，它们未经邀请便飞到我们房间里，或者对着露出亮光的窗户乱扑乱撞。