Yours never will. You must check your feet by touching them with your hands and by looking at them every day!
如果你做到天天通过用手触摸并仔细查看的方式来检查你的脚,你不会到脚有伤了才看医生。
To check for voicing, place your hands on your cheeks.
把手放在脸颊上检查发音。
In any case you should check to see if you are able to reach the ideal flying position without using your hands. This can be done simulating a flight position.
无论如何您应该检测看是否能调整到理想的飞行位置,这可以通过模仿飞行来完成。
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