pitch of weld

例句：

1. 1. 音调，音高；2.投球点；3.
   棒球、曲棍球等的
2. 4.
   高尔夫球的
3. 1. The pitch of the song is so high that it's hard to sing along.
   这首歌的音调太高了，很难跟着唱。
4. 2. The pitch of the new song is different from the old one.
   新歌的音调与旧歌不同。
5. 3. He adjusted his pitch to match the volume of the recording.
   他调整了他的音调以匹配录音的音量。