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A tongue-twister is a phrase that is designed to be difficult to articulate properly, and can be used as a type of spoken (or sung) word game.
I bought a bit of baking powder and baked a batch of biscuits. I brought a big basket of biscuits back to the bakery and baked a basket of big biscuits. Then I took the big basket of biscuits and the basket of big biscuits and mixed the big biscuits with the basket of biscuits that was next to the big basket and put a bunch of biscuits from the basket into a biscuit mixer and brought the basket of biscuits and the box of mixed biscuits and the biscuit mixer to the bakery and opened a tin of sardines.
我买了一点发酵粉,烤了一炉饼干。我带了一大篮子的饼干到面包店,烤了一篮子大饼干。然后我拿出大篮饼干篮子里的大饼干和混合了大饼干和那筐饼干,旁边的大篮子,把一群饼干从篮子里为饼干搅拌器,并把篮子饼干和盒混合饼干和饼干搅拌器到面包房,打开了一罐沙丁鱼。