Underexpansion
(噴管中氣體)不完全膨脹, 膨脹不足
??? 情景例句
No. Will you also initial this change on page 2, please?
不，請你也在第二頁變更處簽姓名的一個字母好嗎？
He that serves God for money will serve the devil for better wages.
求財而供神者必倍求而敬鬼。
We ate our sandwiches and a bar of chocolate each and began to feel better.
我們倆都吃了三明治和一塊巧克力才感到舒服些了。