Know for a certainty that...
确实知道...
🧩 词语组成解析
know
[no]
v. 知道;了解;认识;确信;
n. 知情;
for
[fɚ]
prep. 为，为了;倾向于;关于;当作;
conj. 因为，由于;
🗣️ 情景例句
Richard, how much broccoli do I need for seven people? Richard
七个人吃需要多少花椰菜
Put the receiver closer to your mouth.I can't hear you.
把听筒放近你的嘴，我不能听见你的话。
Yes. Let me introduce him to you.
是的，让我把他给你们介绍一下。