keep in 隐瞒，隐藏；抑制；继续燃烧
短语Keep Walking in Sunshine 常常走在阳光里 ; 走在阳光里 ; 轮椅上的 ; 坚持在阳光下行走
keep sth in mind 记住 ; 记着 ; 想着 ; 记住某事
keep sb in 留下 ; 把关学
keep in
1.留在室内，不外出；呆在家里：
She keeps in during the bad weather.
天气不好时她总呆在家里。
You'd better keep in while it's raining.
下雨时你最好别出去。
2.使处于(或维持)某种状态：
The car is kept in good condition.
这辆车保养得很好。
Her daughter kept her in comfort in her old age.
她女儿使她在晚年生活得很愉快。
3.(让火)燃着，(使)不熄灭：
He kept the fire in all night.
他让火着了一夜。
Will the fire keep in till we come back?
火会烧到我们回来吗?
4.抑制，控制(感情等)：
He was unable to keep his anger in.
他无法控制住怒气。
Tom kept himself in though he was very angry.
虽然汤姆很生气，但他控制住了自己。
5.储备，存有：
Jone likes to keep some good wine in.
约翰喜欢储备一些好酒。
6.把(学生)关晚学：
The teacher kept him in after school.
老师放学后把他关晚学了。
7.给…提供(必需品)；供给：
She doesn't earn enough to keep herself in good clothes.
她挣的钱不够给自己买好衣服穿。
His salary barely kept him in drink and cigarettes.
他的薪水几乎不够他喝酒抽烟。
8.靠路边走：
Keep in! A car is coming!
靠边走!一辆车开过来!
9.收进，收紧(肌肉等)：
The officer asked us to stand straight and keep stomach muscles in.
长官要求我们站直并收紧腹肌。
10.【印刷】(活字)排紧
