收到20%的訂金後才備料，所以 這個交期已經是我們最早的日期了。

收到20%的訂金後才備料，所以 這個交期已經是我們最早的日期了。

結果 (英文) 1:

Only after receiving 20% ​​of the deposit, it is ready to prepare, so this delivery date is already our earliest date.

結果 (英文) 2:

After receiving 20% of the deposit, we have prepared the material, so this delivery date is already our earliest date.

結果 (英文) 3:

We only prepare materials after receiving 20% deposit, so this delivery date is our earliest date.