搜索引擎

sōu suǒ yǐn qíng Internet search engine

哪个

nǎ ge which; who

好用

hǎo yòng useful; serviceable; effective; handy; easy to use

咨询

zī xún to consult; to seek advice; consultation; (sales) inquiry (formal)

邮箱

yóu xiāng mailbox; post office box

：lgooxc@hotmailcom