As no pumas had been reported missing from any zoo in the country, this one must have been in the possession of a private collector and somehow managed to escape.

由于全国动物园没有一家报告丢了美洲狮，因此那只美洲狮一定是某位私人收藏豢养的，不知怎么设法逃出来了。

Lined up against the wall, there were long thin wires attached to metal spheres.

靠墙排列着许多细长的电线，而电线又连着金属球。

These days, advertisers not only offer free samples, but free cars, free houses, and free trips round the world as well.

目前，做广告的人不仅提供免费样品，而且还提供免费汽车，免费住房，免费周游世界。

A long-lost brother, who was presumed dead, was really alive all the time and wickedly plotting to bring about the hero's downfall.And so on.

主人公一位长期失散的兄弟，大家都以为死了，实际上一直活着，并且正在策划暗算主人公；如此等等，

The deepest known cave in the world is the Gouffre Berger near Grenoble.

世界上最深的洞穴是格里诺布尔附近的高弗。伯杰洞，

We offered them food and spoke to them kindly, but they remained motionless.

我们给他们东西吃，客客气气地同他们交谈，但他们却一动也不动。