Underswing
负脉冲(信号)(瞬态特性), 负尖峰(信号)
🗣️ 情景例句
and becoming part of the Stewart family, too.
而且成为Stewart家庭的一份子。
He often plays cards.
他常常玩扑克牌。
The machines will not operate properly.
那些机器不能正常运转。