Smeech
n. 燃燒的氣味, 濃煙
??? 情景例句
On a contract.
在一份合同上面。
He's a smart man.
他是一個精明的人。
If we could actually see the path described by a particle,such as a sand grain in the rock,
假如我們真能看到的運動軌跡，諸如巖石中一個沙粒分子