1.

Li Hua: When I hang out with American friends, Im always afraid to speak.

李華：當(dāng)我和美國朋友在一起的時候,我總是害怕說話。

2.

A Diagnosis System of Water Stress in Plants Based on Digital IM Frequency Technique

基于數(shù)字中頻技術(shù)的植物缺水診斷系統(tǒng)設(shè)計(jì)

3.

Never mind, next time Im sure you can do better.

沒關(guān)系，我相信你下次一定會做得好些。