Photoacoustic
a. [物]光聲的
??? 情景例句
How long have you known her?
你認識她多久了？
I'm only joking.
我是開玩笑的。
But he wanted to see the old folk again and to visit my mother's grave.
但是，他想看一看家鄉父老鄉親，為我的母親掃墓。