建议长度：6张打字页数，双倍行距。

Suggested length: 6 typed pages, double - spaced.

youdao

铃声的建议长度为20秒，并且为了保证声音好听，一定要将铃声制作成循环播放的，意思是结尾要连接到开始。

The recommended length for a ring tone is about 20 seconds, and to sound good, be sure your ring tones are loop-able, meaning that the end fits to the beginning.

youdao

铃声的建议长度为20秒，并且为了保证声音好听，一定要将铃声制作成循环播放的，意思是结尾要连接到开始。

The recommended length for a ring tone is about 20 seconds, and to sound good, be sure your ring tones are loop-able, meaning that the end fits to the beginning.

youdao