It took a while for the new expense policy to penetrate, but everyone now follows it.

新的報帳規定過了一段時間大家才真正理解，但現在每個人都會遵守。

After the third explanation, the shipping delay's real cause finally penetrated the manager's mind.

解釋到第三次後，經理終於恍然大悟，明白出貨延誤的真正原因。

The analyst couldn't penetrate the complex financial report until a colleague walked her through it.

這位分析師一直看不懂那份複雜的財務報告，直到同事帶她逐步了解才豁然開朗。