mainspring
🇬🇧 UK/'meinspriŋ/🇺🇸 US
TOEFLC2
Definitions
n.
The principal coiled spring in a clock or watch that drives its mechanism; the chief cause or motivation behind something.
主发条;主要动力,主要原因
🧩 Root Breakdown
Root-derivedExample Sentences
- 1.
The mainspring of the clock mechanism powers all its functions.
- 2.
Ambition is the mainspring driving his relentless pursuit of success.