I don't understand why it's so difficult to confirm an appointment.

我不明白为什么确认预约就这么困难？

youdao

I don't understand why it's so difficult to confirm an appointment.

我真不懂确认个约会有这么难吗。

youdao

Difficult to confirm the product model, and batch when it comes to product quality problem.

产品生产品种多、批量小，当制造过程及产品质量出现问题时，难以锁定产品型号，批次。

youdao

Difficult to confirm the product model, and batch when it comes to product quality problem.

产品生产品种多、批量小，当制造过程及产品质量出现问题时，难以锁定产品型号，批次。

youdao