三和弦是由三个音高配置成的，你们可选取第一，第三和第五个音。

And we talked about a triad being a configuration of three pitches where you take the first, the third and the fifth.

youdao

可选项。要选取字符的长度。必须为数字。

Optional. How many characters to extract. Must be a numeric value.

youdao

采用本发明，被叫用户可选取重要电话进行回拨，而对骗局电话不予回拨，避免了用户对骗局电话回拨造成的时间和经济损失。

By adopting the invention, called subscribers can select an important call to dial back and not dial back fraud calls, thereby avoiding time and economic loss caused by dial-back for fraud calls.

youdao

And we talked about a triad being a configuration of three pitches where you take the first, the third and the fifth.

三和弦是由三个音高配置成的，你们可选取第一，第三和第五个音。

耶鲁公开课 - 聆听音乐课程节选