3. conceal v. 隐藏，隐瞒(hide, 比hide更加正式，语气强烈)
词句
Eg:He concealed the fact that he was married.
conceal sth. from sb.
Eg.: He concealed his disappointment from his friends.
He tried to conceal in a drawer. 藏在抽屉里的录音机。
翻译：当这位妈妈进来的时候，这位小女孩藏在了窗帘的后面。(hide? conceal?)
When the mother came in , the little girl hid behind the curtain.
 
4． vivid  adj.栩栩如生的，活泼的，生动的
解释
a. bright and strong : vivid blue碧蓝色
b. creating ideas,ect in a lively way:
Eg: He is vivid with life.
c. producing strong clear pictures in mind:
Eg:The English language possesses a vivid saying to describe this sort of situation.
比较级：more vivid
最高级：most vivid
联想记忆：
lesh-and-blood有血有肉的
├realistic真实的
├vivid生动的
├colorful多彩的
├lively /ai/ 鲜活的，生动的
└active活泼的
live broadcasting现场广播
picturesque活灵活现的