Don't be so shy; you should be more confident.

别这么害羞，你应该更自信。

同一单元的其他句子

• My sister is more outgoing than me.我妹妹比我更外向。
• Who is more hard-working, Tom or Jerry?谁更勤奋，汤姆还是杰瑞？
• I am not as funny as my best friend.我不如我最好的朋友有趣。
• She sings more loudly than her classmates.她唱歌比她的同学更大声。
• Be more careful when you cross the street.过马路时要更加小心。