| 单词 | penetration |
| 释义 | penetrationpenetration /ˌpɛnəˈtreɪʃən/ noun 1[countable, uncountable] the act of entering something or passing through it, especially when this is difficult: Protect the wood against water penetration.2[countable, uncountable] the act of moving into an area, especially when other people are trying to stop you: enemy penetrations of U.S. airspace3[uncountable] the degree to which a product is available or is sold in an area: penetration of The company is aiming to increase its penetration of overseas markets.4[uncountable] formal the act or process of an idea or system of beliefs entering and becoming accepted by a society or group of people: the penetration of something into something the penetration of Marxism into Latin America5[uncountable] the act of joining and being accepted by an organization, business, etc. to find out secret information: foreign penetration of the British secret service |
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