Noise suppression is classified into two classes: Passive Noise Control and Active Noise Control.
噪声抑制方法可以分为两大类：被动噪声抑制和主动噪声抑制。
No wonder her classes are always interesting and active.
难怪她的课总是很有趣的，很活跃。
Metacharacters are not active inside classes.
元字符在类别里并不起作用。
Both classes were very active and involved this week!
两个班的孩子都很活跃，也乐在参与其中。
Both classes were very active and involved this week!
两个班的孩子都很活跃，也乐在参与其中。
应用推荐