Underswing
负脉冲(信号)(瞬态特性), 负尖峰(信号)
🗣️ 情景例句
and lay them face down.
将牌盖住。
He's acomposer of serious music.I like his music a lot.
他是严肃音乐作曲家，我很喜欢他的音乐。
It is a curious coincidence that the day before his retirement, Mr.Page will have been teaching for a total of forty years.
佩奇先生退休的前一天正好是他执教满40年的日子，这真是奇妙的巧合。