有些问题还需要弄清楚: certain questions have yet to be clarified
此: 代词1.(这; 这个) this 短语和例子此处 this place; here; 此等 this kind; such as these; 此人 this person; 此项 this item2.(此时; 此地) now; here 短语和例子从此以后 from now on; henceforward; 由此往南 go south from here
已经: already 短语和例子已经到冬天了 。it's winter already. 你已经吃过早饭了吗? have you had your breakfast already? 节目已经完了 。 the programme is over