ask sb. a favour; ask a favour of sb.; 求人帮忙
have to look to others for help; 有求于人
strive for improvement; 力求改进
try to achieve a consensus; 求得一致
Supply falls short of demand.; The supply does not meet the demand. 供不应求。
The supply exceeds the demand. 供过于求。
Qiu Zhong 求仲
牛津高阶第八版
美国韦氏词典
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维基百科 (自由的百科全书)