Elastooptics
弹性光学
🗣️ 情景例句
About 7. I'm grilling burgers.
7点。我要炭烤汉堡。
He's concentrating on learning English.
他集中精力学英语。
I can't order these clothes, unless you can wait some time, or change this note.
如果你不能等些时候或者破开这张票子，我就不能订做这批衣服。