用at，构成at home
Alexander reached home on time .亚历山大准时到了家。
But singapore is my home .
但是新加坡是我的家。
It looks completely at home .
它看起来完全就像在家一样。
Difficulty accessing corporate or home networks .
企业或家庭网络访问困难。
China faces huge problems at home .
中国面临着严重的国内问题。
