[Vocabulary words] 1. invention Something created that has never been made before Ex: If you don't patent your invention, other people might make all the profit out of it. 如果你不為自己的發明申請專利，別人很可能藉此牟利。 2. tinker to make small changes to something Ex: He spends every weekend tinkering (around) with his car. 他每個週末都在擺弄他的汽車。 3. flavor the taste of food or drink Ex: The store sells 32 different flavors of ice cream. 這間店販賣32種不同口味的冰淇淋。