1 used to refer to a thing, animal, situation, idea etc that has already been mentioned or is already known about 它,这,那〔指已经提及或已为对方所知晓的事物、动物、情况、想法等〕
3 used as the subject or object of a verb when the real subject or object is later in the sentence 〔用作动词的主语或宾语,而真正的主语或宾语在句子的后部〕
10 a particular ability or quality that is needed in order to do something [非正式]
〔做某事所需的〕特殊能力
(品质
) informal