凭一时冲动; 日不移晷

1. 一时冲动地, 立刻：proportional gain 比例增益 | on the spur of the moment 一时冲动地, 立刻 | an alternate angle 错角

2. 一时冲动：on the spot 当场 | on the spur of the moment 一时冲动 | on tiptoe 翘首以待

3. 立刻：on the spot 当场 | on the spur of the moment 立刻 | on the square 正直

4. 一时冲动之下,不假思索的：Rent out 租出 | On the spur of the moment 一时冲动之下,不假思索的 | Analogous to...... 与......类似

adv

1. on impulse
without premeditation

e.g. he decided to go to Chicago on the spur of the moment
he made up his mind suddenly

Synonym: suddenly