unnecessary item

I knew every ounce would weigh on me like a little anchor, so I was determined not to include a single item that was unnecessary or superfluous.

我意识到每盎司的重量都会成为一个小小的船锚压迫着我，所以我决定不带任何一样不必要的或多余的东西。

I knew every ounce would weigh on me like a little anchor, so I was determined not to include a single item that was unnecessary or 18 superfluous.

我知道每一盎司东西都会像个小锚一般给我带来沉重负担，所以我决定只要是不必要或多余的东西，就一件也不带。

You should be vigilant in finding and rooting out each small item of excise in your interface. These myriad little extra unnecessary steps can add up to a lot of extra work for users.

你应该警惕地发现和查找界面中的任何一个小附加工作，对于用户来说，无数小的附加工作加起来会构成很大的附加工作。