1. It overran a whole continent.
    整个澳洲兔子成灾。

2. It effectively spread the disease all over the continent and drastically reduced the rabbit population.
    蚊子把这种疾病扩散到整个澳洲大陆，效果甚佳，结果兔子的数目在为减少。

3. It was officially opened on March 7,1994, finally connecting Britain to the European continent.
    它于1994年3月7日正式开通，将英国与欧洲大陆连到了一起。

4. In spite of my parents' objections, I go back to sleep, and I miss some of the most magnificent scenery on the North American continent.
    尽管我父母反对，我又蒙头大睡，因此我错过了北美大陆上一些最壮观的景色。