纪念马丁路德金

commitment – n. a promise to do or give something

contribution – n. something that is done to cause something to happen

sibling – n. a brother or sister

tribute – n. something that you say, give, or do to show respect or affection for someone

envious – adj. feeling or showing a desire to have what someone else has

coffin – n. a box in which a dead person is buried

preacher – n. a person who speaks publicly about religious subjects in a Christian church or other public place

bulletin – n. a quick announcement from an official source about an important piece of news

grieve – v. to feel or show grief or sadness