也许用玩具气球的情况最容易说明这种反作用力。
It is perhaps easiest to understand the reaction in the case of the toy balloon.
我也带了玩具、如娃娃、球、气球、滑板和风筝。
I also took toys, such as doll, ball, balloon, skateboard and a kite.
我也拿了玩具，如玩偶，球，气球，滑板和一个风筝。
I also took toys, such as doll, ball, balloon, skateboard and a kite.
我还带了玩具，如娃娃，球，气球、滑板和风筝。
I also took toys such as doll ball balloon skateboard and a kite.
我还带了玩具，如娃娃，球，气球、滑板和风筝。
I also took toys such as doll ball balloon skateboard and a kite.
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