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cartoon – n. a movie or television program made by photographing a series of drawings
in a snap – phrase. done, made, or carried through suddenly or without thinking
bubble – n. a tiny, round ball of air or gas inside a liquid
spectrum – n. a complete range of different opinions, people, etc.
diagnose – v. to recognize (something, such as a disease) by signs and symptoms
introduce – v. to make (someone) known to someone else by name
lesson – n. an activity that you do in order to learn something
backpack – n. chiefly US : a bag for carrying things that has two shoulder straps and is carried on the back
