这款新手机的预售到发货的等待时间是三周。

The ___lead-time for this new smartphone from pre-order to delivery is three weeks.

定制家具通常需要三周的交付周期。

Custom furniture usually requires a three-week ___lead-time for delivery.

这批家具的交付周期是六周。

The ___lead-time for this batch of furniture is six weeks.