Pfe
频率效应百分数
🗣️ 情景例句
was tabled because of lack of funds.
因为缺乏经费被无限期地搁置。
It's hard sailing when there is no wind.
没有风难航行。
That's the doorbell, said Ann's mother. They're here!
“门铃响了，”安的母亲说。“他们来啦！”