理所当然地；通常
先理解核心含义，再看它在真实句子里的用法。
理所当然地；通常；理所当然地；通常
as a natural or expected part of a process
He checked the oil level as a matter of course before starting the engine.
他理所当然地在发动引擎前检查了油量。
理所当然地；通常
as a natural or expected part of a process
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Dictionary facts from AI_SUPPLEMENT.