in touch 联系,接触
in turn 依次,轮流;转而
in vain 徒劳,白费力
indifferent to无兴趣,不关心
indignant with sb.愤慨
inferior to级别低于,不如
innocent of无...罪,无辜
instead of 代替,而不是
intent on专心于
invisible to不可见的
jealous of嫉妒
just now 眼下;刚才
keep one's eyes on关注
keep on爱好,很喜欢
keep track of 留心
kind of / sort of有点somewhat
lay off 下岗
leave alone别说
let the cat out of the bag泄露秘密
liable for对...有责任
liable to易于
little by little 逐渐地
look for / hunt for 找工作
lost the point弄错
lots of 许多
loyal to忠于
mad about/on狂热迷恋
mad at/with sb.生气,愤怒
mad with因...发狂
make (both) ends meet收支平衡