Every morning and evening, he would carry their milk himself from home as he made his deliveries.

参考译文：每天早上和晚上，当他给别人送货的时候，他总会自己从家里随身带上/扛/拿他们的牛奶。

as为从属连词，“当...的时候”引导时间状语从句。

(1)carry vt.携带;随身带/拿;提;拎;搬;扛

You have to carry a bleeper so that they can call you in at any time.  

你要随身带着寻呼机,以便他们随时呼你。

He was carrying a briefcase.  

他提着公文包。

He carried the plate through to the dining room. 

他端着盘子来到餐厅。

(2)delivery n.(信件、包裹等的)递送，投递，运送 

Please allow 28 days for delivery.  

递送将需要 28 天的时间。

It is available at £108, including VAT and delivery.  

其价格为 108 英镑，包括增值税和送货费在内。