Area of piston
[機] 活塞面積
?? 詞語組成解析
area
['?r??]
n. 地區;區域，范圍;面積，平地;領域;
of
[?v]
prep. 關于;屬于…的;由…制成;
aux. 助動詞 [非標準用語、方言] =have [主用于虛擬語氣];
piston
['p?st?n]
n. <機>活塞;
??? 情景例句
What's your position in the company?
你在公司任何職務？
Unless there is a sudden change of political situation, it is not accepted to execute the contract only partially.
除非有什么突然的政局變化，否則執行部分合同不能被接受。
you will realize that a modern navy is a good place to study noise.
你就會認識到現代海軍是研究噪音的好地方。