Diameters
n. 直径( diameter的复数形式 ); 放大率
🗣️ 情景例句
Keep quiet about it if you know what's good for you.
什么也别说，免得你自个儿添不自在。
How much is it by air mail?
航空信要多少钱？
Where can I check in?
在哪儿办理登记手续？