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...
他身体出现了神经性抽搐，开始不停地眨眼睛。He developed a nervous twitch and began to blink constantly.他的手臂和腿突然抽搐起来。His arms and legs jerked convulsively.奥利维娅的脸上一阵抽搐。Olivia's face convulsed in a series of twitches....