您要查找的是不是：
- critical singing frequency 临界振鸣频率
- The critic is singing the praise of her new book. 评论家高度赞扬她写的新书。
- A blackbird nosed up into the sky, singing. 一只山雀唱着歌向空中飞去。
- I want you to put more heart into your singing. 我希望你在唱的时候多带点感情。
- He was pleased to get up to the singing of birds. 他很高兴起床听到鸟的歌唱。
- I enjoy singing, much more listening to music. 我喜欢唱歌，更不用说听音乐了。
- I want to sing at a karaoke bar next. 接下来，我想去卡拉OK酒吧唱歌。
- She is a very discerning art critic. 她是位眼光敏锐的艺术评论家。
- She earned her living by singing in a nightclub. 她靠在夜总会唱歌谋生。
- The kettle was singing (away) on the cooker. 水壶在炉子上发出呜呜声。
- I think the chastisement to him is too critical. 我认为对他的惩罚太严厉了。
- Merry songsters are singing carols. 欢乐的歌手们正在唱颂歌。
- Singing is not really my forte, but I'll try. 唱歌实在不是我擅长的，但是我试着唱唱看。
- The inquiry was critical of her work. 该项调查对她的工作提出了批评。
- The tenor disappointed us by singing flat. 那位男高音歌手调门儿唱得很低，十分扫兴。
- Birds sang/were singing away happily outside. 小鸟在外面愉快地唱个不停。
- He varied the transmission frequency. 他变换了无线电传送的频率。
- The reform is at its critical stage now. 改革正处于关键阶段。
- Now he'll have to sing small because I beat him. 我把他击败了，他现在只好乖乘的了。
- Her performance won her much critical acclaim. 她的表演大获评论界赞颂。
