not care [worth] a hoot [two hoots]
毫不在乎 [毫无价值]
"Never had anything to do with her.
“我跟她毫无关系。
without hesitation
毫不犹豫地, 立即
millimetre of mercury
毫米水银柱(mmHg)
This is fun. It's a piece of cake.
有意思 毫不费力。
not worth a bean
一文不值，毫无价值，毫无用处
It is measured in milliseconds so1000 ms=1 second.
他是以毫秒计算的，1000毫秒=秒。
millimeter and submillimeter astronomy
毫米波和亚毫米波天文学
millimeter wave and submillimetet wave vacuum electron device
毫米波与亚毫米波真空电子器件
Provided in bottle of 500 ml, 1 lt and cartridges of 200 ml.
500毫升,1升凭装或200毫升墨盒.
Diameter is reported to the nearest hundredth of a millimeter (0.01 mm).
直径就近报告百分之一毫米(0.01毫米).
In 3 intoxicated cases,the concentration was 4.65-5.3 ng/ml.
中毒组(3例)为4.65～5.3毫微克/毫升。
Study on Millimeter and Sub-millimeter Radiation Features
物体的毫米波/亚毫米波辐射特性分析
She couldn't deal him a social blow-there was no question about this and he didn't flinch.
在社交场上，她别想伤他一根毫毛；这是毫无疑问的。因此他毫不退缩。
Shop The four treasures refer to burshes, inksticks, paper and inkstones. Here are some painting brushes made of goat hair, weasel hair and rabbit hair.
售货员: 文房四宝指笔墨纸砚，毛笔有羊毫、狼毫和紫毫。
There's no point in discussing it any more.
再争论下去毫无意义。
autofocus 35mm camera
自动聚焦35毫米相机
The matter does not regard you at all.
这事和你毫无关系。