a是b的两倍 用英语怎么说

A is twice( )B

He earns twice as much as I do.
他挣的钱是我挣的两倍。

I am more than twice as old as he.
我的年龄是他的两倍还不止。

The length of the table is twice its breadth.
桌子的长度是它的宽度的两倍。

你的问题似乎应该是：a是b的两倍...；或者：a在什么方面是b的两倍。

句型1：A have/has/had twice as many/big/much as...as B.
例句1：泰国游客是澳大利亚的两倍多。
表达1：Thailand had twice as many as visitors as Australia.

句型2：A is twice the size/length/amount of B
例句2：你的屋子是我的屋子的两倍大。
翻译2：Your room is the double size as mine.
或者说：Your room is twice as large as that one.
或者说：Your room is twice the size of that one.

句型3：倍数+ as + adj. + as = 倍数+ the length/size/ + of
例句3:这座桥是那座桥的两倍长。
翻译3：This bridge is two times as long as that one.
或者说：This bridge is three times the length of that one.

The size of a is as twice as that of b.
A is doubled compared with b.

a is twice as much as b

a is as twice as b .

A is twice as muc