四个“倍数”的表达法。

（1）A+be+倍数+as+adj./adv.的原级+as B.

（2）A+be+倍数+adj./adv.的比较级+than B.

（3）A+be+倍数+the+名词（size/length/weight...）+of B.

（4）A+be+倍数+what从句。

如：这个红色的铅笔是那个蓝色铅笔的三倍长。(https://www.daowen.com)

The red pencil is three times as long as the blue one.

The red pencil is three times longer than the blue one.

The red pencil is three times the length of the blue one.

The red pencil is three times what the blue one is.