Mauna Loa awoke from a 25 year silence in July 1975, filling its summit - pit crater with lava.莫纳罗亚火山在1975年7月又从沉睡了25年的状态下苏醒过来了, 山顶上的火山口充满了熔岩.They climbed up the mountain and reached the summit.他们爬山, 最终达到了山顶。The blizzard ...
As we approached the summit we were vouchsafed a rare vision.快到山顶时，我们有幸看到了难得一见的景象。Military bandsmen played music from each country represented at the summit.军乐队演奏了峰会中各与会国的音乐。Egypt had agreed to a summit subject to certai...
克拉克远远地开在前面，已保持了一段足够长的安全车距，他于是放慢车速，开始定速巡航。Out in front, Clarke had built up such a sizeable safety margin that he eased the pace and started cruising.在伦敦泰晤士河上的巡航已成为一年一度的引人注目的事.Cruises on the Thames in London, have become ...
Tremain's novel is altogether jauntier, more various and energetic than these quotations imply.与这些引文给人的印象相比，特里曼的小说总的来说更加充满自信、富于变化，也更有活力。ROSE TREMAIN is a difficult pigeonhole.萝丝?崔梅是一位难以定性的作家....
氨基酸是弱酸和弱碱, 因此, 它们是很好的缓冲剂.Amino acids are weak acids and weak bases, therefore, they are excellent buffering agents.缓冲剂可以像烤面包的苏打粉那样使用,它们都能够使ph值保持稳定.Buffers can be used like baking soda will help keep ph stable.着重叙述了缓冲剂原理及...