Two young girls were collecting firewood.
两位年轻女孩在采集柴火。Dust had collected / gathered on the window-sill.
...hobbies like stamp collecting and fishing. …
诸如集邮和钓鱼之类的爱好。
(of telephone calls) on a reverse-charge basis
(打电话)由对方付费
I collect shells and interesting seaside items.
我收集贝壳以及海边有趣的东西。