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| it's not uncommon that; it's not uncommon for; as it happens | |||
as is often the case; as often happens; as often is the case (with something Maria Klavdieva); as is often the case (The results of those missions are classified, but, as is often the case, former employees of the agency are prone to information leaks, so the public learned about the details of these studies.  anomalien.com ART Vancouver) | |||
| как это часто бывает: 3 短语, 1 学科 |
| 一般 | 3 |