Cobaltamine
[化] 鈷胺素; 維生素B12
??? 情景例句
The area of industry you wanted to get into is already at saturation point.
你想進入的待業已經達到飽和點了。
I'm going to show him how to speak English.
我正要指點他如何講英語。
Where do you think you are? On a race track?
你認為你現在是在哪兒？在賽車道上嗎？