例句與造句

1. His book is an encyclopaedic hotch-potch of ideas which contains everything from A to Z relating to the Chinese mystique of numbers ( magic squares, . . . generation of the eight trigrams, musical tubes ), how computation should be taught and studied, the meaning of technical arithmetical terms, computation on the abacus with its tables which must be learnt by heart, the history of Chinese mathematics, mathematical recreations and mathematical curiosities of all types ."
2. It's difficult to find mathematical recreations in a sentence. 用mathematical recreations造句挺難的
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