補充返1樓, 即係數得到的就persons, 數唔到的就people.
eg. there are 8 persons in the queue; people are queueing up for xx.
eg. chinese people, british people, 用黎代替"ladies and gentlemen"嘅"people"
不過又補充返, 而家好多時通俗習慣下, "people"都用得比較所謂嘅"濫". even外國人都係. 所以oral就冇咩所謂. 但如果係學生d grammar, 咁就唔同.