The gas , which is sulphur - free , contains 89 - 99 % methane, up to 6 % ethane, and 3 % propane.天然气不含硫, 含甲烷88-99%, 乙烷6%和丙烷3%.The cloud might be snowing ethane snowflakes into methane lakes below.云层可能正在向下面的甲烷湖飘落乙烷雪.BA 1...
我用螺丝刀拧那些该死的螺丝钉时一点也使不上劲儿。I couldn't get any purchase with the screwdriver on the damn screws.他有一股子使不完的劲.He just doesn't know what it is to be tired.她那使不完的精力令我羨慕.I admire her boundless energy....
过去的三个月真受罪。The last three months have been hell.每天早上四点起床简直是活受罪。Getting up at four o'clock every morning is sheer purgatory.这双鞋糟透了, 让我的脚受罪.This is a villainous pair of shoes; they have ruined my feet....