1. 使用你的食指和无名指在键,代替中指的使用。
Use your index and ring fingers for the trill keys instead of the middle finger.

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2. 啭鸣, 抖音的或波动的声,如某些鸟发出的叫声,啭鸣。
A fluttering or tremulous sound, as that made by certain birds; a warble.

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3. 啭鸣, 抖音的或波动的声,如某些鸟发出的叫声,啭鸣。
A fluttering or tremulous sound, as that made by certain birds; a warble.

youdao