单词	seesaw
释义	noun | verb seesawseesaw1 /ˈsisɔ/ noun [countable] Etymology ETYMOLOGYseesaw1 Origin: 1600-1700 Probably from ➔ SAW2 1 a piece of equipment that children play on, made of a board that is balanced in the middle so that when the child sitting on one end goes up the other goes down SYN teeter-totter2a situation in which someone or something keeps changing from one state or condition to another and back again noun | verb seesawseesaw2 verb [intransitive] Verb Table VERB TABLE seesaw Simple Form Present I, you, we, they seesaw he, she, it seesaws Past I, you, he, she, it, we, they seesawed Present perfect I, you, we, they have seesawed he, she, it has seesawed Past perfect I, you, he, she, it, we, they had seesawed Future I, you, he, she, it, we, they will seesaw Future perfect I, you, he, she, it, we, they will have seesawed Continuous Form Present I am seesawing he, she, it is seesawing you, we, they are seesawing Past I, he, she, it was seesawing you, we, they were seesawing Present perfect I, you, we, they have been seesawing he, she, it has been seesawing Past perfect I, you, he, she, it, we, they had been seesawing Future I, you, he, she, it, we, they will be seesawing Future perfect I, you, he, she, it, we, they will have been seesawing to move from one condition to another and back again
随便看	arsenal arsenic arson arsonist art art deco art director artefact Artemis arterial arteriosclerosis artery artesian well art film artful artfully artfulness art gallery art house arthritic arthritis arthropod Arthur Arthur, Chester Arthurian

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