abbr.毫米
int.唔，嗯(书写中表示同意、思考中、喜欢、犹豫等发出的声音)
n.毫米

I need a ruler that measures up to 30 mm.
我需要一把能测量到30毫米的尺子。
The diameter of this screw is approximately 5 mm.
这个螺丝的直径大约是5毫米。
She wears a ring with a 2 mm diamond.
她戴着一颗有2毫米钻石的戒指。
The baby's weight at birth was just over 3 kg, or 3000 mm in weight.
这个婴儿出生时的体重刚超过3公斤，也就是3000克。
The thickness of the wall is about 10 mm.
墙壁的厚度大约是10毫米。
The standard size of a credit card is 85.60 mm by 53.98 mm.
信用卡的标准尺寸是85.60毫米乘以53.98毫米。
The rainfall yesterday was recorded at 50 mm.
昨天的降雨量记录为50毫米。
The pixel density of this screen is 400 pixels per inch, or about 160 dots per mm.
这个屏幕的像素密度是每英寸400像素，或者大约每毫米160点。
The beak of a hummingbird is typically around 10-12 mm long.
蜂鸟的喙通常长约10-12毫米。
The distance between each hole on a standard golf tee is usually 75 mm.
标准高尔夫球座上每个洞之间的距离通常是75毫米。