尽量用降调结束陈述句，但不要减弱音量。
Try to end declarative sentences on a low tone without, however, trailing off in volume.
使用标准美语的人都会常常使用英语弱音。
Speakers of standard American English use reduced English much of the time.
但声音里最不可或缺的，山叶钢琴里有：弱音。
But what is essential for the sound - Yamahas have that - is the pianissimo.
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