Bismuthyl
氧鉍基
??? 情景例句
And you didn't exercise?
你沒有參加健身操？
How often did I tell you to speak clearly?
我告訴你多少次要講清楚?
We agree to insert a clause giving you a ten-day grace period.
我們同意給你加上一條10天寬限期的條款。