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嘴唇向两侧微微分开,上下齿之间大约可容纳一个小指头尖的距离。
舌前部在发音过程中抬起,舌尖稍微接触下齿背。
发音时下巴逐渐向下移动,震动声带,发出/e/音。
It depends.
Forget it.
You bet.
Just a sec.
it's not the end of the world.