英语是：Write him an email。
解释：
write 英[raɪt] 美[raɪt]
vt. 写; 写信; 写作; 作曲;
[例句]If you'd like one, simply write your name and address on a postcard and send it to us
如果你想要一个的话，只要把姓名、住址写在一张明信片上寄给我们就行。
email 英['i:meɪl] 美['i:meɪl]
n. 电子邮件;
vt. 给…发电子邮件;
him 英[hɪm] 美[hɪm]
pron. (he的宾格) 他;
[例句]John's aunt died suddenly and left him a surprisingly large sum
约翰的婶婶突然去世了，留给他一笔巨额财产。
