Donor-acceptor complex

donor ['donɚ]

n. 捐赠者，[医]供血者，输血者;[医]供血者，输血者;[物]施主;

don给予+or表名词，人→给的人 → 捐献者

acceptor [[ək'septə]]

n. 接受者, 承兑人, 接收器\\n[化] 接纳体; 接受体; 受体; 受主; 被诱物

complex [kəm'plɛks]

adj. 复杂的;难懂的;复合的; n. 建筑群;相关联的一组事物;情结;不正常的忧虑;

com共同+plex重叠→全部重叠→复杂的

Room Service. What can I do for you?

客房服务部，能为您效劳吗？

I cannot afford two days off a week.

我忙得无法一星期抽出两天休假。

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。