Instamatic system
[计] 飞机订票系统
🧩 词语组成解析
[计] 飞机订票
🗣️ 情景例句
He cheated on his wife.
他对他妻子不忠。
I wonder what he's doing.
我不知道他在做什么。
as the wave leaves the particles behind back to its starting point again.
当波浪把微粒留在身后时又回到出发点。