A cubic yard

cubic ['kjubɪk]

adj. 立方体的; n. [数]三次曲线（方程式，多项式，函数）;

cub=cube立方+ic形容词，...的 →立方形的

yard [jɑd]

n. 院子;码（等于3英尺或36英寸或0。9144米）;场地;帆桁;

you had some doubts about wanting to go to Michigan.

你对上Michigan大学有些疑虑。

We invited two guests to dinner,but they didn't come.

我们邀请了2个客人去吃晚饭，但是他们没来。

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。