例句與造句

1. Longuet-Higgins introduced the theory of the origin of microseisms and is the inventor of " rhombo blocks ", a mathematical toy consisting of blocks whose faces are rhombuses.
2. In 1953 he wrote a scientific paper on the properties of the Slinky ., and in the 60's made a film on Mathematical Toys, starring his children.
3. It's difficult to find mathematical toy in a sentence. 用mathematical toy造句挺難的