动名词作定语往往表示被修饰词的某种用途。

如：a walking stick =a stick for walking=a stick which is used for walking

a washing machine=a machine for washing=a machine which is used for washing

a reading room=a room for reading=a room which is used for reading

a measuring tape=a tape for measuring=a tape which is used for measuring

sleeping pills=pills for sleeping=pills which is used for sleeping

The man standing there is my friend.

"standing"这个动名词就是修饰那个man的定语。

句子的译文是：那个站在那里的男人是我的朋友。