Pfe
频率效应百分数
🗣️ 情景例句
We need a new coffee-table book,
我们需要一本可以摆在客厅的书，
He never breaks his word.
他决不食言。
I'm afraid I must.Look at it!It's terribly dry.
恐怕我得现在浇。你看看，干得厉害。