因为增加了3倍呀,那再加上原来的...所以3+1=4倍.
这个房间比那个房间大三倍:
This house is three times larger than that one.
(比较级 more than)
This house is three times the size of that one.
(名词 + of)
This house is three times as large as that one.
(as...as...结构)
记忆小窍门:所有表示倍数的句型都是先写出倍数,然后在后面跟上比较的内容.
要注意的是,英语中两倍通常不是用two times,而是用twice来表达