sac

From Longman Dictionary of Contemporary EnglishRelated topics: Plants, Animals, Biologysacsac /sæk/ noun [countable] technical HBPHBAa part inside a plant or animal that is shaped like a bag and contains liquid or airExamples from the Corpussac• Be sac and write your story step by step.• The child slipped into the world, still in its birth sac.• The tip of the catheter was positioned directly on the gestational sac.• With these different theories come different conclusions about the history of the skeleton, fins, nasal sacs and so on.• Then he lifted something small and wet; a pale, tiny sac attached by tubes and tendons to the rest.Origin sac (1700-1800) French “bag”, from Latin saccus; → SACK1

单词	sac
释义	sac From Longman Dictionary of Contemporary EnglishRelated topics: Plants, Animals, Biologysacsac /sæk/ noun [countable] technical HBPHBAa part inside a plant or animal that is shaped like a bag and contains liquid or airExamples from the Corpussac• Be sac and write your story step by step.• The child slipped into the world, still in its birth sac.• The tip of the catheter was positioned directly on the gestational sac.• With these different theories come different conclusions about the history of the skeleton, fins, nasal sacs and so on.• Then he lifted something small and wet; a pale, tiny sac attached by tubes and tendons to the rest.Origin sac (1700-1800) French “bag”, from Latin saccus; → SACK1
随便看	play for time play games play games play games (with somebody) play games with play gooseberry play happy families play hard to get play hardball play hell with play hooky play host play host (to something) play host to play house etc play into hands play into somebody’s hands play it carefully etc play it carefully/cool etc play it cool play it cool etc play merry hell with play no part in play of light play off