Now Alfred began a long series of skirmishes -- and within a month the Danes had surrendered.

这时，阿尔弗雷德发起一连串小规模的进攻，结果不出一个月，丹麦人就投降了。

Obviously, it has not been planned for the good of its inhabitants.

显然，现代化的城市不是为居民的利益而规划的。

This knocks the turtle down several feet.

这一下子把海龟撞下去好几英尺。

It was the idea of supporting a craft on a 'pad',or cushion, of low-pressure air, ringed with a curtain of higher pressure air.

用一个气垫来支撑船体，低压空或软垫，软垫周围用高压空气环绕。

He was the man who climbed the Leaning Tower of Pisa and dropped various weights from the top,

他就是那个曾经爬上比萨斜塔，从塔顶向下抛掷各种重物的人；

Travellers on short trips to areas with water supplies of uncertain quality should avoid drinking tapwater, or untreated water from any other source.

短途旅行到水质不保险的地区时，应避免饮用水龙头的水或未经处理任何其他来源的水。