Lowered sea levels exposed the shallow continental shelf beneath the Bering Sea.海平面下降使白令海底部的浅层大陆架暴露出来。How do people define the continental shelf?人们怎么确定陆架的范围的?The water above the continental shelf is moved by the tides an...
By the 1930s the wristwatch had almost completely supplanted the pocket watch.到了20世纪30年代，手表几乎完全取代了怀表。In most offices, the typewriter has now been supplanted by the computer.当今许多办公室里, 打字机已被电脑取代.The prime minister was supp...
Food supplies were severely depleted.食物供应已严重不足。Both teams were severely depleted by injuries.两个队都因队员受伤而实力大减.By the end of the winter the supply of grain was severely depleted.冬季快要结束时,粮食贮备已经消耗得差不多了....