liven up; look out for; look through; luck into

liven * up +
(使) (某人) 振作起來;(使) (某人) 快樂起來
Sam was subdued to start with, but after a while he livened up. (剛開始的時候,山姆有點沈默,但過了一會兒他就活躍起來了)
She's going to liven herself up a little by going for a run. (她要去跑跑步來提振自己的心情)

liven * up +
(給…) 增色;(使…) 更有趣、更有活力或更美好
A new coat of paint would liven the house up. (新刷一層漆會使房子明亮起來)
Liven up your meals with fresh herbs and spices. (新鮮的香料和調味品會讓飯菜的味道更加鮮美)

look out for +
Look out for Sam while you're there. (你在那裡的時候注意找一找山姆)
We are told to look out for any suspicious behavior. (我們被告知要注意任何可疑的行為)

look through +
I've looked through some catalogues. (我已經瀏覽了一些目錄)
I looked through the article. (我已看過那篇文章)

luck into +
We lucked into tickets for the World Cup finals. (我們幸運地弄到了世界盃決賽的門票)