单词:biogenic sediment
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1135 、 晶体点阵;晶体格构;晶格 crystallattice 1136 、 棘轮和爪 ratchetandpawl 1137 、 棘齿 ratchet 1138 、 棘齿弓钻 ratchetbrace 1139 、 壳型模塑 shellmoulding 1140 、
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Lesson Twelve Short Conversations Read aloud the concersation two times, and then listen to the tape without looking at the text. The Circuit Box Assignment Mr. Rathbone: Well, how are you doing? Eugene: Fine, sir. The computer section is coming alon
今天我们要讲几个在美国总统大选的竞选阶段常会用到的习惯用语。美国总统大选每四年举行一次。在大选年的前一年,准备竞争本党总统候选人提名的人士就已经在各州积极展开竞选活动了,
SAN JOSE, Dec. 23 (Xinhua) -- Colombian cyclist Oscar Sanchez took the lead Sunday in the 48th edition of the Costa Rica Tour, clocking the fastest time in the seventh leg of the 12-stage competition. Sunday's race featured a grueling 18-kilometer up
Improving London The Olympic games hope to regenerate a poor part of London and make it better with jobs, homes, shops and transport links. These will last for a hundred years or more, not just for a few weeks in the summer. The different buildings a