Dav
abbr. 美国残废退伍军人组织（Disabled American Veterans）
🗣️ 情景例句
When you learn a new verb, learn its various forms.
学到了新动词时，记住它的各种形式。
Who did I piss off?
我招谁惹谁啦？
For one thing they keep the water clean.
一来，水下植物可以保持水的清洁。