Definition: a unit of length which is equal to 0.001 meters Level: B1
一张纸大约有0.1毫米厚。
A sheet of paper is about 0.1 ___millimeters thick.
这款新智能手机的厚度不到8毫米。
The new smartphone is less than 8 ___millimeters thin.
一只蚂蚁的长度可以小到只有2毫米。
An ant can be as small as 2 ___millimeters in length.
