就15秒，繞口令。

Betty Botter bought some butter but she said the butter"s bitter.

If I put it in my batter it will make my batter bitter.

so, she bought some better butter,

better than the bitter butter.

she put it in her batter and her batter was not bitter.

so it was good that Betty Botter bought some better butter.

She sells sea-shells on the sea-shore.

And the shells she sells are sea-shells, I"m sure.

If she sells sea-shells on the sea-shore,

The shells she sells are sea-shore shells, I"m sure.

我在課本上給你找了倆適合15秒的，一個詞一個詞敲的。