spare no pains

汉语翻译

例句：

1. The hotel staff spared no pains to ensure that our stay was as enjoyable as possible.
   旅馆工作人员对我们照顾得无微不至，尽量让我们住得舒适，
2. He spares no pains to study English.
   他不辞劳苦地学习英语。