There is a mass of detailed work to be done.

VOA: special.2009.11.01

If the vehicle in the unfortunate circumstances of a collision, has to be able to maintain the security of the hydrogen which means more mass, which means a lot of the efficiency is being squandered What's the environmental impact of hydrogen production?

如果车辆,在碰撞中发生了不幸，要仍然能够保持氢气的安全性的话,意味着需要更多的质量，也就是说大部分效率被浪费了,制氢对环境有什么影响呢？

麻省理工公开课 - 固态化学导论课程节选

in order to be able to distribute it on a mass scale. You needed a company of, with a lot of capital,

为了能够大规模发行。你需要一个有很多资金的公司，

音乐市场的变化 - SpeakingMax英语口语达人

(SINGING) A few hours later, Mass was celebrated at the Church of the Holy Sepulcher, believed to be the site where Jesus was crucified and rose from the dead.

VOA: standard.2010.04.04

This spring is getting squashed on either side, and it'll squash by certain amount x, that depends on your mass, and that x will be turned into a motion of a needle and that'll read your mass.

这个弹簧两边都会受到压缩,压缩量为 x,它由你的质量决定,x 会转换成指针的运动,你从而可以读数

耶鲁公开课 - 基础物理课程节选

Australia's defenses against the outbreak of the H1N1 virus will be boosted when mass flu vaccinations start next month after officials fast-tracked a scheme capable of covering it's entire population of 21 million people.

VOA: standard.2009.08.25

The war was sold to his cabinet, to parliament and to the British people on the basis that Saddam Hussein was a dangerous man holding weapons of mass destruction (WMDs) that could be unleashed within 45 minutes.

VOA: standard.2009.12.13