Rarifying
vt. 使成精细；使变稀薄\\nvi. 变稀薄；纯化
🗣️ 情景例句
As a matter of fact,
事实上，
What can I say?
我能说些什么呢?
If they had only had one more child, the fact would have passed unnoticed.
如果他们只添了1个孩子，这件事本来就不会引起任何人的注意。