第一个句子:Cheer up!振作起来!（鼓励别人）

cheer:欢呼,喝彩!

Cheer up==pull yourself together!

第二个句子: Give it a shot!试一试!

give it a shot==give it a try==have a try!

继续刚才的对话:

-So just now you suggested that I should recite more new words?
-Yeah!
-Does it make sense?（有作用吗?）
-You may give it a shot!

Don't look down upon ourselves! Cheer up and give it another shot, then you can see the sunshine!

祝愿你的心情天天快乐,你的阳光天天灿烂!下期再见!