Shrinkag alowance
[機] 收縮裕度
??? 情景例句
I made it myself.
我自己做的。
He is a very funny man.
他是一個很有趣的人。
(A light year is the distance which light travels at 186,000 miles per second in one year,
一光年是光以每秒186，000英里的速度在一年內(nèi)走的距離，