birth canal的用法和样例：

例句

One specimen is even preserved in the birth canal.一个样本甚至在产道中被保存了下来。
Turn the little oval skull face-forward, and it drops neatly into the pelvic brim, the beginning of the birth canal.把这个小小的椭圆形头颅脸朝前，便能巧妙地滑入骨盆缘，那里即是产道开始的地方。

EXPLORATIONS - Erie Canal

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Explorations

Security is Major Concern Along Panama Canal

Broadcast: Jan 29 2003 Since the terrorist attacks of September 11, 2001, authorities in Panama have stepped up security at their nation's 1) transoceanic canal and they are now working closely with i

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VOA慢速英语2011--Bigger Ships, So a Bigger Panama Canal

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2011年VOA慢速英语(八)月

2007年VOA标准英语-Some Indians Say Proposed Canal Will Destroy Sa

By Anjana Pasricha New Delhi 22 September 2007 A political storm is raging over a project to build a shipping canal in southern India. As Anjana Pasricha reports from New Delhi, Hindu activists say the canal will destroy a bridge they believe was bui

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2007年VOA标准英语（九月）

China intensifies efforts to protect ancient canal

BEIJING, June 9 (Xinhua) -- China is moving to better protect its 2,500-year-old Grand Canal by encouraging public donations and banning unnecessary construction in the area. The Ministry of Culture publicized a set of regulations to protect the Gran

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英语新闻

AP美联社一分钟新闻 2008-09-02

1. Hurricane Gustav is quickly losing its punch after plowing through south Louisiana's fishing and oil industry.The National Hurricane Center downgraded the storm to a Category 1 with 90-mile-an-hour winds. 2. Hurricane Gustav is sending water rush

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