the act or process of making a way into or through something 穿透；渗透；进入 The floor is sealed to prevent water penetration. 地板加了密封涂料防止渗水。 🔊🔊 the company’s successful penetration of overseas markets 公司对海外市场的顺利开拓 Our aim is to achieve greater market penetration. 我们的目标是进一步打入市场。 The country has the highest smartphone penetration in Europe. 该国是欧洲智能手机普及率最高的国家。
Oxford Collocations Dictionaryadjective- deep
- greater
- high
- …
- achieve
- facilitate
- allow
- …
the act of a man putting his penis into his partner’s vagina or anus （男人阴茎的）插入 Oxford Collocations Dictionaryadjective- sexual
- anal
- vaginal
- …
Word Originlate Middle English: from Latin penetratio(n-), from the verb penetrare ‘place within or enter’.