(1)个性特点，气质，性情(quality or tendency in a person's character)[U，a～][N(of)]：There's a～of musical talent/insanity in the family. 这个家庭的人都有音乐天赋/神经错乱的毛病;a～of madness in Tom 汤姆生性疯疯癫癫的;〖同〗character，tendency，trait;

(2)品系(种)，类型(particular breed or type(of animal，insect，plant，etc))[C]：a virus of unidentified～一种未被识别的病毒;the～of wheat 小麦的品系;a rare/new～of orchide (peas) 一种珍贵的/新的兰花(豌豆);～s of mosquitoes/corn 各种蚊子/玉米;〖同〗type，breed，variety，kind，sort，group;

(3)曲调，乐曲(section of a piece of music being performed)[C，通常pl](lit)：a familiar/pleasant～熟悉/悦耳的曲调;the～s of a well-known song/the nightingale 一首著名歌曲/这支小夜曲的曲调;the angelic～s of choirboy's singing 唱诗班男童歌手天使般的歌声;〖同〗tune，song;

(4)口吻，语气，笔调(tone，style or spirit of an utterance，writing，etc)[U，a～]：a humorous～幽默的口吻;speak in the same～用相同的语气讲;write in a happy/similar～用欢快的/相似的笔调写