The patient coughs very often and expectorates foul smelling grayish sputum.这个病人常常咳嗽,并且吐出灰色的臭痰.In disease states, it does appear in the sputum.处于病态时, 它必然在痰中出现.blood in the sputum痰中的血丝Examination of the sputum for neoplas...
We were crouching in the bushes.我们蹲在树丛里。The cat was crouching in the grass, waiting for the bird.这只猫蹲伏在草丛里, 等着捉那只鸟.There was a cat crouching in the corner.角落里蜷缩着一只猫....
All compounds are unities of opposites differing in nature.化合物都是不同性质的东西的对立统一.You see, an atom is a complex of unities of opposites.你看在原子里头,就充满矛盾的统一....