他穿着短裤，膝盖的伤口已经结痂。He had short trousers and scabby knees.你割破了, 血会凝固、结痂.When you cut yourself , blood clots and forms a scab.这个伤口会疼痛难忍，直到大约10天后结痂才会好些。The area can be very painful until scabs form after about ten days....
The relationship between plant and pollinator is a mutualistic one.植物和授粉动物之间的关系是典生关系.The fig - pollinator mutualism system is maintained by the reproductive relationships.和榕小蜂共生体系是由宿主和共生者之间的生殖配合维系的.They think O - zone in...
He was a tall, thin man with grey hair.他是个瘦高个，头发灰白。Lovett was a tall, commanding man with a waxed gray mustache.洛维特是个威严的高个男人，蓄着灰白的八字胡。The windows overlooked a lawn of tall waving grass.窗户外边是一块草地，高高的草随风摇摆。...