- They'll soon catch on.
他们很快就学会了 - Some trees, it seems, are particularly suitable for rubbing.
有一些树似乎特别适合搓背 - Bears have their favourites
熊们都有自己的偏好 - and will travel long distances to visit them.
他们会长途跋涉 去找喜欢的树 - Some itches just have to be scratched.
身上有些痒 急需挠一挠 - There are now around 30 bears in this one valley.
这个山谷中大约有三十只熊 - 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