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為宜,這有助於降低生產成本。
由於to為介詞,後面如果加動詞要用doing形式.
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為宜,這有助於降低生產成本。
由於to為介詞,後面如果加動詞要用doing形式.