lucky dog
幸运儿

例句：
John is a lucky dog, he just won 100 dollors on a bet.
约翰真是个幸运儿，他与人打赌刚赢了100元。

modem
调制解调器

例句：
Your computer is taking a long time to download files from the Internet because your modem is working at such a slow speed.
你的调制解调器速度太慢了，所以从因特网上下载文件需要很长时间。