5. A busy computer keeps careful track of ________.
(A) metals costing of a million molars (B)the millions of dollar worthing metals
(C)the millions of dollar worth of metals (D)the million’s worth metals
Alsa Lin 小六下 (2011/06/08) worth [noncount] : an amount of something that has a specified value, that lasts for a specified length of time, etc. (+ of) e.g. He bought 40 dollars' worth of gas. [=an .....看完整詳解
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