词典释义：
-
People,by their very nature,are always on the lookout for intruders.Trying to prevent those on the outside from getting in.
人本能都在寻找入侵者，阻止别人从外面闯入。
《绝望主妇》
-
One is always on a strange road,watching strange scenery and listening to strange music.Then one day,you will find that the things you try hard to forget are already gone.
一个人总要走陌生的路，看陌生的风景，听陌生的歌。然后在某个不经意的瞬间，你会发现，原本是费尽心机想要忘记的事情真的就那么忘记了。
《蓝莓之夜》
双语例句
-
Powerful devices and always-on access.
强大的设备和不间断的访问。
-
He's always on the qui vive for a business opportunity.
他始终密切关注商机。
-
The TV is always on in their house.
他们家的电视总是开着。
-
She's always on the phone, wanting to know what I've been up to.
她总是打电话，想知道我忙了些什么。
-
The printer is always on.
这个印刷机永远处于开机状态。