✅ 同义词
🗣️ 情景例句
He's been here for years, he should know the ins and outs of the job by now.
他在这里已经好多年，现在理应熟悉各方面的工作了。
He who never was sick dies the first.
小病不生，一病致命。
I'll try my best.
我尽力而为。