在局部地方白云石和硬石膏也是重要的胶结物;还有少量自生石英.Locally dolomite and anhydrite are important as cements , together with minor authigenic quartz.钱存在银行,利息自生.Money deposited in banks will accrue to us with interest.两种环境下形成的自生矿物组合截然不同.Authige...
‘Billy, I think it’s your turn to wash the dishes,’ said Jane. A noncommittal grunt was his only reply.“比利，我想这次该轮到你刷盘子了， ”简说。他只是不置可否地咕哝了一声算作回答。I asked him if he approved of our plan, but he was noncommittal.我问他是否赞同我们的计划，...
河床上散布着很多大圆石。The riverbed was strewn with big boulders.他躲在一块大圆石后面,静静地听着.He hid behind a great bowlder and fell to listening.我喜欢沙滩,不喜欢遍布小圆石的海滩.I prefer a sandy beach to a shingly one....
I don't want any more of that heavy stuff.我再也不想碰那种麻烦事了。The outside air was heavy and moist and sultry.外面的空气沉滞、潮湿而闷热。I slowly zipped and locked the heavy black nylon bags.我慢慢地把那些沉重的黑色尼龙袋的拉链拉上并锁好。...