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BNC: 7800 COCA: 10864

penetration noun [ U ] MOVEMENT INTO

a movement into or through something or someone进入;穿透

Sunscreens can help reduce the penetration of ultraviolet rays into the skin.防晒霜可以减少紫外线穿透皮肤。
The company is trying to increase its penetration of the market.该公司正在努力扩大其市场份额。

the act of a man putting his penis into his partner's body during sex(性交时阴茎的)插入

penetration noun [ U ] UNDERSTANDING

formal someone's ability to understand quickly and well洞察力


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