号笛控制在控制台。
Whistle control on wings of bridge.
号笛控制在驾驶台两侧。
号笛控制在什么地方?
Once you've learned the basic pucker, you can begin to exhale in order to control the duration and volume of each note you whistle.
一旦学会了基本的撅嘴动作,就可以开始呼气,控制住每个吹出的哨音的持续时间和音量。
Once you've learned the basic pucker, you can begin to exhale in order to control the duration and volume of each note you whistle.
一旦学会了基本的撅嘴动作,就可以开始呼气,控制住每个吹出的哨音的持续时间和音量。
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