Subnote
abbr. Submarine Notice 潜艇通知（美国海军）
🗣️ 情景例句
Oh, here he comes.
噢，他来了。
That's a tough question to answer.
那是一个很难回答的问题。
I don't think you'll have any difficulty in pushing sales.
我认为你推销时不会有任何困难。