what'sthemeaningof“Mymumhassentmeafriendrequeatforthethiedtime.”?

what'sthemeaningof“latestnews”?

what'sthemeaningof“likeneverbefore”?

what'sthemeaningof“takearisk”?

what'sthemeaningof“socialnetwork”?

what'sthemeaningof“unblock”?

what'sthemeaningof“convenient”?

what'sthemeaningof“meaningless”?

what'sthemeaningof“fake”?

What'sthemeaningof“upload‘’？

what'sthemeaningof"defriend"?

what'sthemeaningof''block''?

已知向量a=（8，7），b=（4，1），求a-b=（）

翻译句子：我发现学外语很难。

What'sthemeaningoftheword"season"?