necessary的意思

基本释义

• adj 必要的；必需的；必然的

  something that is necessary is what you need to have or need to do

• n 必需品

  things such as food or basic clothes that you need in order to live

例句

1. The booklet provides all the necessary information about the college.

   这本小册子提供了关于那所学院的所有必需信息。

2. No further changes were considered necessary.

   没有必要作出进一步改变。

3. The doctor says it may be necessary for me to have an operation.

   医生说我可能需要做手术。

短语

• if necessary 如果必要的话
• necessary for 所必需；对…是必要的
• necessary condition 必要条件，充分必要条件
• when necessary 在必要的时候
• as necessary 必要时

近义词

同根词