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A blue-feathered barn swallow, part of the thousands of migratory birds descend on Candaba marsh north of Manila. Thirty years ago the marshes covered some 32,000 hectares (79,000 acres) but with the spread of agriculture and urbanisation just 72 hectares remain

这是一只蓝羽家燕，它是马尼拉北部Candaba湿地上成千上万只迁徙鸟儿中的一员。30年前，这些湿地曾占地32，000 公顷（79，000英亩），而如今，由于农业发展加上城市扩张，只余下72公顷了。

Two and half years ago, Barnes left the foreign service, moved to Shanghai and started his business.

两年半以前，巴尼斯离开了在国外的工作，搬到上海开始了他的生意。

Since I saw you one day get out of your barouche and go into Susse's, three years ago.

从我看见您从马车上下来走进絮斯商店那一天起开始的，那是三年以前的事了。""

And how long has this been going on?''Since I saw you one day get out of your barouche and go into Susse's, three years ago.

"从我看见您从马车上下来走进絮斯商店那一天起开始的，那是三年以前的事了。"

A century ago, Edith Wharton enlivened her novels with dozens of bright, if now obsolete, observations about petticoats, leather-bound books and the graceful sway of a C-spring barouche.

一个世纪以前，伊迪丝·沃顿就通过对裙子、皮封书籍以及弓形弹簧四轮马车的优雅摆动的不厌其烦的机灵观察而使她的小说十分生动，虽然现在看来有些陈腐不堪。

Many years ago, up until the Sixties, the fashionable beaches were those of Miraflores, Barranco and Chorrillos as well as the more distant beaches of Ancón.

直到60年代，最知名的海滩是密拉弗洛雷思、巴朗哥、绰里约以及恩孔(译注2)一带最偏远的海滩。

A few years ago, we paid just $25 for a barrel of oil.

几年以前，我们为一桶油支付25美元。

Some months back, in the New York Times Book Review, John Barth said that ten years ago most of the students in his fiction writing seminar were interested in ?

我曾无意听到作家沃尔夫对他的学生说："别耍廉价的花招"这句话也该写在一张卡片上。

Stepping stones into the sea, these basaltic columns of the Giant's Causeway in Northern Ireland formed from volcanic activity some 50 million to 60 million years ago.

供踏脚的石头到海洋里，这些玄武岩的柱状物的巨大的堤道在北部的爱尔兰形成的从火山的活动约5000万年到6000万年以前。

Photo Gallery: Rocks Stepping stones into the sea, these basaltic columns of the Giant's Causeway in Northern Ireland formed from volcanic activity some 50 million to 60 million years ago.

供踏脚的石头到海洋里，这些玄武岩的柱状物的巨大的堤道在北部的爱尔兰形成的从火山的活动约5000万年到6000万年以前。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。