Arbitrary unit

arbitrary ['ɑrbətrɛri]

adj. 随意的，任性的，随心所欲的;主观的，武断的;霸道的，专制的，专横的，独断独行的;乱;

arbitr判断+ary...的→做出自己的判断→武断的

unit ['ju:nit]

n. 单位，单元;装置;个体;[数]单位数;

Look at that Superman balloon!

你看那个超人气球

Ouch! That hurts.

好痛呦！会受伤哩！

On our way home that night I looked down and saw that the necklace was not around my neck any more. I told Pierre. We rushed back to the palace and looked for it.We asked everyone there if they had found a necklace, but without luck. We couldn't find it;

那天晚上在回家的路上，我低头一看，发现项链不再挂在我的脖子上了。我告诉了比尔。我们马上赶回王宫去寻找。我们询问了那儿的每一个人，问他们是不是拾到了一条项链。可是，真倒霉。我们找不到那条项链；它丢失了。