HSK 7-9
码
mǎ量
(archaic) agate; (bound form) standard weight used with a balance scale; number; (computing) code
这块布长五码，正好够用。
Zhèkuài bù cháng wǔ mǎ, zhènghǎo gòuyòng.
This piece of cloth is five yards long, which is just enough.
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Appears across levels (7-9) in the HSK 3.0 word list.