Foreign key
[計] 外來關鍵字
?? 詞語組成解析
key
[ki?]
n. 鑰匙;（打字機等的）鍵;關鍵，線索，秘訣;（音樂的）調;
vt. 鍵入;鎖上;調節…的音調;提供線索;
vi. 使用鑰匙;
adj. 關鍵的;主要的;
??? 情景例句
I'm exhausted. I had to work until 2 o'clock this morning.
我累死了。我一直得干到今天早上2:00。
Have you taken a bus?
你坐過汽車嗎？
I was being tested for a driving licence for the third time.
我第3次接受駕駛執照考試。