He took a course to learn about car maintenance.

他学习了汽车保养的课程。

There's another lesson about car maintenance.

还有一个关于汽车保养的教训。

In today's video, we're going to look at basic car maintenance.

在今天的视频中，我们将了解基本的汽车保养。

This doesn't include necessary expenses like car maintenance, groceries, et cetera, more so items that I have my eye on but are not a need, i.e. a velvet armchair for my work-from-home office or an electronic food compost I've been obsessively researching.

这不包括必要的费用， 如汽车维修、杂货等，更不包括我关注但不需要的物品， 即我在家办公室工作的天鹅绒扶手椅或我的电子食品堆肥一直在痴迷地研究。