- [countable] (abbreviation oz)(in Britain and North America)
a unit for measuring weight, 116 of a pound, equal to 28.35 grams 盎司（重量单位，¹⁄₁₆ 磅，等于 28.35 克） - [singular] ounce of something (informal)
(used especially with negatives 尤与否定词连用 a very small quantity of something 少许；少量；一点点；丝毫
Word OriginMiddle English: from Old French unce, from Latin uncia ‘twelfth part (of a pound or foot)’; compare with inch.
Idioms
an ounce of prevention is better than a pound of cure (US English)
(British English prevention is better than cure)
- (saying)
it is better to stop something bad from happening rather than try to deal with the problems after it has happened 预防优于补救；防患于未然是上策