require：/rɪ'kwaɪr/v. 需要；要求；命令These pets require a lot of care and attention.这些宠物需要悉心照顾。The wearing of seat belts is required by law.法律规定必须系安全带。【词性拓展】requirement：/rɪ'kwaɪɚmənt/n. 要求；必要条件；必需品My only requirement is to go with you.我唯一的要求是和你一起去。sacrifice：/'sækrɪfaɪs/n. 牺牲；祭品；供奉Her parents made sacrifices so that she could have a good education.为了让她受良好的教育，她的父母作了很多牺牲。【用法拓展】sacrifice to sb. 向某人献上祭品They offered sacrifices to the gods.他们向众神献上祭品。
