13. Let's sing a duet.
來個二重唱吧。
還能這樣說：
Let's sing in duet.
Let's sing together.
14. What's your karaoke specialty?
你唱卡拉OK有什么拿手的歌嗎？
還能這樣說：
What's your best song?
Which songs do you sing the best?
應用解析：
special court 特別法庭；
a special train 專車，臨時列車；
special to 對……特別的；
make a special study of 專修，專攻
15. I dare not to sing in front of people.
我不敢在大家面前唱歌。
還能這樣說：
I dare not to sing publicly.
I have no courage to sing in public.
應用解析：
out front 在觀眾席中；
a front for sth. 非法或秘密活動的隱蔽物；
front-page 頭版新聞；
front runner 最有可能成功或勝利的人，領先者
16. I can't keep up with the new songs.
我跟不上新歌的速度。
還能這樣說：
I can't keep track of the new music.
I can't learn the new songs fast enough.
應用解析：
keep up with the Joneses 趕時髦，與他人攀比；
keep time 合拍子；及時；
keep watch 留意，注意，守望；
for keeps 永遠地，永久地；
keep after 緊緊追趕；
keep away 使離開，避開
17. It was the most beautiful song I had ever heard.
那歌聲是我所聽過的最優美的歌曲。
還能這樣說：
I had never heard a more beautiful song than this one.
Among all the songs which I had heard, this one was the best.