They are so eager, they don't even pause to feed. 他们求爱心切 甚至没时间停下来进食
They close up their leathery leaves to form an insulating blanket 它们合起革质叶片形成一道保温层
They all thrive in the tropical sun. 它们在炎炎烈日下茁壮成长
they will have to return to their dens to hibernate, 他们就要回自己的窝里冬眠
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
As they rub, each leaves an individual and recognisable scent. 每只熊摩擦时都会留下易于辨认的独特气味
So the bears must feed as fast as they can. 所以灰熊必须尽快进食