Certify to
v. 书面证明
🧩 词语组成解析
to
[tu,tə]
prep. 向，朝着;到;关于;属于;
adv. 朝一个方向的;到某种状态;关闭;
🗣️ 情景例句
He's gone out of business.
他失业了。
How many slices are you going to use?
你要用几片？
You don't need anything special.
你不需要什么特别的东西。