John·ny-on-the-spot 
(jŏn′ē-ŏn′thə-spŏt, -ôn′-)
(jŏn′ē-ŏn′thə-spŏt, -ôn′-)n.
Informal
Informal
A person who is available and ready to act when needed.
| 单词 | Johnny-on-the-spot |
| 释义 | John·ny-on-the-spot (jŏn′ē-ŏn′thə-spŏt, -ôn′-)n. Informal A person who is available and ready to act when needed. |
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