售后服务对于一个产品的成功至关重要。的翻译：After-sales service was crucial to the success of a product. 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

After-sales service is critical to the success of a product.

After-sales service was crucial to the success of a product.

The post-sale service is very important regarding a product success.

After-sales service for a product is critical to the success.

After-sales service was crucial to the success of a product.