Their new outpost was on the crest of a hill.他们新的前哨阵地设在一座小山包顶上.The troops received orders to trench the outpost.部队接到命令在前哨周围筑壕加强防卫.I've been putting down rebellions in this rotten outpost for eleven years.十一年来我一直在偏僻边...
The sediments are detrital and largely of greywacke facies.沉积岩为碎屑质,大部分属于杂质砂岩相.Glauconite, detrital carbonate skeletal debris, marine fossils, and collophane are commonly present.海绿石 、 碳酸盐骨骸碎屑 、 海相化石和胶磷矿普遍出现.The sediments...
Honeybees use one of the most sophisticated communication systems of any insect.蜜蜂之间所用的交流方式是昆虫中最为复杂的方式之一。The scientist's experiments have thrown great light on the amazing ways honeybees communicate in their dark hi...