unnecessary and unwarranted.
不必要的和无根据的。
needless work, trouble, worry
不必要的工作、 麻烦、 烦恼.
(esp unnecessary)fuss or trouble
（尤指不必要的） 忙乱,麻烦
with undue hurry and confusion.
不必要的匆忙、混乱。
expose soldiers to unnecessary risks
使士兵冒不必要的危险
Deleted some unnecessary words in the first draft.
删去初稿中不必要的词
You should avoid unnecessary repetition.
你应避免不必要的重复。
violent and needless disturbance.
强烈而且不必要的暴乱。
Avoid unnecessary reporting.
避免不必要的报告。
Civilization is a limitless multiplication of unnecessary necessities.
文明是不必要的必需品的无限增加。
This is not necessary and often not desirable.
这是不必要的，而且经常不符合需要。
Don't laBor the reader with unnecessary detail.
不要用不必要的细节使读者疲倦。
In writing telegrams, omit superfluous words.
写电报稿要省去不必要的字。
Banding is not generally necessary nor even desirable.
条施通常是不必要的，也不是最理想的。
I can't subscribe to unnecessary killing.
我不能同意不必要的杀戮。
Never a needless jar was made.
绝对不带半点不必要的刺激。
Avoid the tendency to overdress. You will reduce unnecessary sweating which contributes to heat loss.
不要对外套过于讲究，你必须减少不必要的热量丧失引起的出汗。
major programmes not requiring revisions
不必修订的主要方案
