How can I implement Declaration to bouncy ball?

我怎样才能实现弹力球宣言？

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Emily - Tablecloth, balloons, Napkins and Bouncy ball.

桌布，气球，餐巾，弹力球。

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How did that other frog learn to turn itself into a bouncy ball and roll down hills away from danger?

某些特殊的蛙类怎么学会把身体团成一个有弹性的球滚下山崖以逃避危险？

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Lamar Hunt, the flamboyant owner of the Kansas City Chiefs, had seen his children playing with an incredibly bouncy ball.

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India's prolific domestic cricket is played on dull, flat tracks, which make most of its batsmen vulnerable to the moving ball and bouncy pitches overseas.

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Traditionally, mozzarella, that bouncy, grassy-fresh ball of a cheese, is made with the milk of the water buffalo in the Campania region of Southern Italy.

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