🗣️ 情景例句
My computer was infected by a virus, I guess since I didn't have firewall installed.
我的电脑受到病毒感染了，我想是因为我没装防火墙。
When the tree is fallen, every one runs to it with his axe.
大树一倒下，人人持斧来。
What do the farmers do with your machines?
农民用机器做什么呢？