YSK the length of your hand, forearm and at least a finger. It will be useful to measure things when there's no ruler nearby
from /r/YouShouldKnow
YSK的长度为你的手、前臂和至少一个手指。当附近没有尺子时,它对测量东西会很有用。
YSK的长度为你的手、前臂和至少一个手指。当附近没有尺子时,它对测量东西会很有用。
YSK the length of your hand, forearm and at least a finger. It will be useful to measure things when there's no ruler nearby
from /r/YouShouldKnow