音高有细微变化的音符a note with subtle variances of pitch至少可以说，她的音域不够宽，而且令人不舒服的是，她总是音高偏低。Her vocal range was, to say the least of it, limited, and she had a distressing tendency to sing flat.声音不要比出气的声音高, 否则我就当真把你掐死.Don't spea...
树同样能减少氨水产生的强烈气味.Trees can also reduce the strong older odor of ammonia ammonia gas.树木能把尘土 、 氨水和氨气捕捉到它的叶子里.TreesThe trees capture dust, ammonia ammonia and olders odors in their leaves.一种包含胺基 ( 具有氨水性质的化学基 ) 有机酸.An organic...