导读 有助于,有利于例句：The optimal planting depth was 40~50 cm and it was conductive to minimize costs of production.栽...
有助于,有利于例句：The optimal planting depth was 40~50 cm and it was conductive to minimize costs of production.栽植深度以40~50 cm为宜,这有助于降低生产成本。
由于to为介词,后面如果加动词要用doing形式.。
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