冒: a word used in a person's na ...不必要: unnecessary; dispensable; un ...的: 4次方是 The fourth power of 2 i ...危险: dangerous; perilous; risk; p ...造成不必要的危险: ul csa不必要的: needless; otiose; superfluous; uncalled for; uncalled-for; unnecessary; unneeded; unwanted不必要的,多余的: unnecessary不必要的报警: needless alarm不必要的成本: unnecessary cost不必要的机动: unnecessary maneuvering不必要的损害: unnecessary harm不必要的项目: unnecessary item不必要的忧虑: uncalled for worries不必要的增长: unwarranted growth不需要的, 不必要的: needless避免不必要的牺牲: avoid unnecessary sacrifice避免不必要的重复: avoid needless duplication不必要的,可有可无的: dispensable不必要的记录堵塞: unnecessary record blocking不必要的交互作用: unnecessary interaction给予不必要的刺激: spur a willing horse节省不必要的开支: save unnecessary expenses删掉不必要的细节: cut out the unnecessary details勿做不必要的花费: don't involve yourself in unnecessary expense不必要的, 多余的, 没有理由的: uncalled-for