black (of pencil lead).
单词 | θ194873 |
释义 | society > communication > writing > writing materials > writing instrument > [noun] > pencil > filling for pencil > type of pencil-lead (4) B1852 black (of pencil lead). BB1852 double-black (of pencil lead). BBB1852 treble-black (of pencil lead). HB1852 (on lead pencils), hard black (denoting a medium hardness). |
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