Beginner Level Advanced Level
INTERMEDIATE LEVEL
Content
改进 → ☊ gai3jin4 
to improve; to make better; CL:个/个ge4 ☊ 
Được cải thiện ☊
改良 → ☊ gai3liang2 to improve ☊ Được cải thiện ☊
→ → →
like: Được cải thiện → →
It may be many years before the situation improves. ☊ before ☊
It is simply not the case that prison conditions are improving. ☊ case ☊
Standards in health care have improved enormously compared to 40 years ago. ☊ compare ☊
The weather gradually improved. ☊ gradually ☊
The performance improved as their confidence grew. ☊ grow ☊
indication (that...): There are clear indications that the economy is improving. ☊ indication ☊
His English is improving little by little. ☊ little by little ☊
Her condition is not improving as we hoped. You must prepare yourselves for the worst. ☊ prepare ☊
prospect for sth: Long-term prospects for the economy have improved. ☊ prospect ☊
relationship (between A and B): The relationship between the police and the local community has improved. ☊ relationship ☊
Her technique has improved a lot over the past season. ☊ technique ☊