Pfe
频率效应百分数
🗣️ 情景例句
You're just wasting your breath.
你在白费口舌。
There's no sense in going by boat when the plane is just as cheap and much quicker.
既然乘飞机和坐船一样便宜而且还快得多，那么就没有理由去坐船。
Postcards always spoil my holidays.
明信片总搅得我假日不得安宁。