Prokaryotes lack organelles such as nucleoli, mitochondria, plastids , Golgi apparatus, and do not exhibit cyclosis. 原核生物无细胞器,如核仁 、 线粒体 、 质体 、 高尔基体等, 不出现胞质环流.
There was a scream of brakes from the carriageway outside.外面车行道上传来刺耳的刹车声。His mouth was a little open, as if he'd started to scream.他的嘴微微张开,似乎是要开始尖叫.Lou prattled on about various trivialities till I wanted to scream....
Its present economic ills on the home front are largely the result of overspending.它目前国内方面的经济弊病主要源自支出过度。We shall have to listen to more platitudes about the dangers of overspending.我们又得再听一通超支危害的陈词滥调了.Its present economic...