英语语法分析

British and American warships are standing by to evacuate their citizens if necessary.

英美战舰已做好准备一有必要就撤出本国公民。

《柯林斯英汉双解大词典》

Several warships are cruising around the Mediterranean Sea.

好几艘军舰正在地中海上游弋。

In ancient Roman times, the Italian peninsula had great forest of fir preferred for warships, but scarcity was apparent as early as the early fourteenth century.

在古罗马时期，意大利半岛上有大面积的冷杉林，是建造军舰的首选材料，但是，冷杉的稀缺性早在14世纪早期就出现了。