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Japanese Babylon (Babylonia japonica); Japanese ivory shell
spinning top (traditionally made from a Japanese Babylon shell)
海辺でばいを集めるのが趣味だ。
Collecting ivory shells at the beach is my hobby.
この地方ではばいがよく取れる。
Ivory shells are commonly found in this area.
ばいの殻はとても美しい形をしている。
Ivory shells have a very beautiful shape.