penetration
[ˌpen.ɪ'treɪ.ʃən] noun uncountable
MOVEMENT INTO 穿透
■a movement into or through something or someone 进入；穿透•Sunscreens can help reduce the penetration of ultraviolet rays into the skin.防晒乳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占有率。 ■the act of a man putting his penis into his sexual partner's vagina or anus during sexual activity （性交时阴茎的）插入
[ˌpen.ɪ'treɪ.ʃən] noun uncountable
UNDERSTANDING 理解 formal
■someone's ability to understand quickly and well 洞察力 |