rival n 竞争者
criminal n 犯罪分子
aboriginal n 原始居民(ab+origin起源+al)
mural n 壁画
hospital n 医院
arsenal n 火库
cereal n 谷物(cere谷+al)
dismissal n 解雇(dismiss解雇)
survival n 生存,幸存
withdrawal n 撤退;撤消(with相反+draw拉+al)
refusal n 拒绝(refuse拒绝)
appraisal n 评价,评估(appraise评价)