| 单词 | abacus |
| 释义 | Word Frequency abacus(ˈæbəkəs) nounWord forms: plural -ci (-ˌsaɪ) or -cuses 1. a counting device that consists of a frame holding rods on which a specific number of beads are free to move. Each rod designates a given denomination, such as units, tens, hundreds, etc, in the decimal system, and each bead represents a digit or a specific number of digits 2. architecture the flat upper part of the capital of a column Word origin C16: from Latin, from Greek abax board covered with sand for tracing calculations, from Hebrew ābhāq dust |
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