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INTERMEDIATE LEVEL
Content
改善
→
☊
gai3shan4
to make better; to improve; CL:个/个ge4
☊
Cải thiện
☊
→
→
→
OXF3000ZH:
改进
☊
→
改善
☊
→
改进处
☊
→
improvement
like: 改善
→
→
改善 → ☊ gai3shan4 
to make better; to improve; CL:个/个ge4 ☊ 
Cải thiện ☊ 改进 ☊ → 改善 ☊ → 改进处 ☊ → 
improvement