1. Dolphins lack vocal cords, nevertheless creating sounds: a complicated system of whistles, squeaks, moans, trills, and clicks are produced by sphincter muscles inside the blowhole. 海豚没有声带,但却能发声:一个由口哨声、吱吱声、呻吟声、颤音和咔嚓声组成的复杂系统是由喷水孔内的括约肌产生的。
2. Her trills are far from pleasing to the ear. 她唱歌的颤音一点也不悦耳。
3. Nearby, women responded with high-pitched trills. 在附近,女人则用尖锐的花舌颤音作为回应。
4. Mutual respect… she laughs and trills and she sings when she speaks. 她的笑声带着颤音,说话像在唱歌。
5. 'It's all about having those convex surfaces to reflect light,' he trills. “那就是用这些凸面来反光,”他说。