-
The string is vibrating higher when it's exactly twice what the lower one is.
高音弦的震动频率,正好是低音弦的两倍
应用推荐
$firstVoiceSent
- 来自原声例句
The string is vibrating higher when it's exactly twice what the lower one is.
高音弦的震动频率,正好是低音弦的两倍
应用推荐