He needs to fine down his theory a bit.
他需要使他的理论更完善一些.
《简明英汉词典》
The whole plant is covered with fine down.
整株植物都覆盖着细茸毛。
辞典例句
She can fine down her voice to a whisper.
她能把声音压的又细又低.
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Her doctor told her to fine down her weight.
她的医生让她减肥.
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Precision manual fine down feed.
精密手工精细下来的饲料.
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