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单词 ounce
释义
ounce 1 (ouns)
n.
1. Abbr. oz
a. A unit of weight in the US Customary System, an avoirdupois unit equal to 437.5 grains (28.35 grams).
b. A unit of apothecary weight, equal to 480 grains (31.103 grams). See Table at measurement.
2. A fluid ounce. See Table at measurement.
3. A tiny bit: not an ounce of sympathy.

[Middle English unce, from Old French, from Latin ūncia; see oi-no- in the Appendix of Indo-European roots.]
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