而在另一些地区, 石油和天然气的开采也是准许的.And in some sanctuaries, the extraction of oil and gas is allowed.任何未经准许的制作和采购均是不法的.Unlicensed production and sales are against the law.我们的职员是提供您友好和专业服务的高度训练和充分地被准许的承包商.Our staffs are highly train...
Many of those changes could just be a temporary fix.那些变革中可能有很多只是权宜之计。He was egocentric, a man of impulse who expected those around him to serve him.他是个以自我为中心、易冲动的人，希望身边的人都为他服务。...those fellows we see working behind the c...
地衣是一类独特的生物有机体,其体内合成了多种特殊的次生代谢产物,主要为缩酚酸、缩酚酸环醚 、 缩酚酮、二苯并呋喃等类化合物.A lot of secondary metabolites such and were produced by lichens, a class of unique organisms....