The lake was ponded by lavas a long time ago.这条湖是很久以前熔岩堵塞河道形成的.Such lavas also once came from the volcanoes in the Cascade Range in Washington.在华盛顿州的喀斯喀特山脉的火山也喷出过这样的熔岩.Previously, researchers had found nearby pillow lava...
对哈夫纳机器的修理即将结束。The repairs to the Hafner machine were near to completion.这些机器将来会需要备件和维修保养。In the future the machines will need spare parts and maintenance.我们三人站在机器周围，若有所悟地点着头。The three of us stood around the machine noddi...
我们对以上各项 ( 商品 ) 目前均无兴趣.The above ( articles ) are of no interest to us at present.忧郁''.'症'.''以极度意志消沉 、 ''.'无'.''兴趣及逃避现实为特征的一种精神病.A mental disorder characterized ...
Builders must fasten down roofs of newly-built homes more securely.建造工人必须把新建房屋的屋顶固定得更牢靠些。Ensure that the frame is securely fixed to the ground with bolts.确保用螺栓把框架牢牢地固定在地面上。He knotted the laces securely together.他把带子紧紧地系在...