想也没想
xiǎng​yě​méi​xiǎng

without a second thought

  1. 想 xiǎng verb
    to think
    to think; to consider; to ponder; to reflect on a problem or idea
  2. 也 yě adverb
    even
    used to emphasize a point by highlighting an extreme or unexpected case, often used with 连 lián
  3. 没 沒 méi adverb
    [negation]
    Shows that an action is not finished or has not happened; often used as an abbreviation of 没有 méi​yǒu.
  4. 想 xiǎng verb
    to think
    to think; to consider; to ponder; to reflect on a problem or idea