…a small tinny voice.细小尖利的嗓音He could hear the tinny sound of a radio playing a pop song.他能听到收音机播放流行歌曲的刺耳声音。She could hear the tinny strains of a chamber orchestra.她能听见室内管弦乐队尖细的旋律。It is one of the cheapest cars on the mar...
He was not good at algebra in middle school.他中学时不擅长代数.In algebra, the sign X usually denotes an unknown quantity.在代数里, 符号X常用来表示未知数.His classmates were labouring with elementary algebra.他的同学们正在绞尽脑汁地演算初等代数题....