Precedently
在前地
??? 情景例句
If you don't know a person's last name, use 'ma'am' or 'sir'.
如果你不知道一人的姓， 你應稱呼他為 'ma'am' 或 'sir' 。
He was so angry, he began to jump and down.
他憤怒得開始頓足。
Latham made another attempt a week later and got within half a mile of Dover, but he was unlucky again.
萊瑟姆一周以后也作了一次嘗試，飛到離多佛不到半英里的地方。