据悉海豚有时会救溺水的游泳者。Dolphins have sometimes been known to save drowning swimmers.即使最强壮的游泳者也会无助地被交叉水流冲走。Cross-currents can sweep the strongest swimmer helplessly away.游泳者从湖水中浮出来。The swimmer emerged from the lake....
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...