so now they must put on as much weight as they can. 所以现在必须尽可能地增重
they really have to put their back into it. 他们得用后背好好地蹭一蹭
an adult can put on 180 kilos gorging on plants 一只成年灰熊靠吃植物能长一百八十公斤
He does his best to put on a turn of speed. 他尽全力加快速度
although they put out a few ribbon like leaves they produce very extended networks of fleshy stems, risomes, that are buried in the sand. 海草长出叶子状的带状物 以此延伸它们埋在沙子里的肉质根茎.
At night, the algae are inactive but then, the polyps put out even more tentacles 到了晚上,共生藻停止工作 珊瑚开始释放更多的触手
Feet, so vital for gliding, are now put to other uses. 脚蹼用来滑翔 也可以用来干别的事情.
They put coils in their tendrils so that if their support moves, they will stretch and not snap. 因此向支撑的树移动时 它们会伸展而不会断裂
Vines and other climbers put all their energy into rapid vertical growth, rather than girth 蔓生植物和攀爬植物一样 把全部的力量用于垂直生长,而不是横向生长
He must now put his chick at risk. In these temperatures it could freeze in seconds. 它现在要让小企鹅冒险, 在这种温度下 小企鹅随时有可能冻死