those = that 的复数= the +nouns (当指代物的时候)
those = the ones (当指代人的时候)
right: the equpiments (复数)are bigger than those (复数)on the other side of the road.
Wrong: the equpiment (单数)is as bigher as those (复数)in the room.
另外 those只能用于异物指代, 同物指代只能 they, them
wrong: the students got great scores, because those had studied hard.
right: the students got great scores, becasue they had studied hard.
-- by 会员 ximenheng (2012/4/20 11:07:00)