人山人海 a sea of faces：How many people are there in the stadium? Believe it or not, a sea of faces.
人之常情 human nature：It's human nature for me to help those who need help.
人云亦云 echo others' words：Don't echo others' words. Sometimes you've got to find out the truth.
人去楼空 Regretful to say, when the master was absent, his mansion was dead.
人面兽心 a wolf in sheep's clothing：He is cruel enought to kill that girl; he's really a wolf in sheep's clothing.
人言可畏 Opinion rules the world：Always remember what I say to you. Opinion rules the world.
十年风水轮流转 Every dog has its day.
十全十美 leave nothing to be desired：The show just leaves nothing to be desired.
十拿九稳 We have winning the game in the bag.
小Car笔记：
believe it or not：信不信由你
find out the truth：查明真相