词汇	It pays to be polite
释义	It pays to be polite. 客气不吃亏。
随便看	Moderate thermoacidophile moderate thermophile Moderate thermophile bacteria Moderate thermophiles moderate thermophilic bacteria moderate thickness moderate thick plate moderate thinning moderate threat moderate-to-conservative moderate-to-heavy moderate-to-heavy rain moderate-to-high moderate to high in price moderate to high myopia moderate to high temperature Moderate to inferior in quality Moderate to inferior in quality; ordinary moderate-to-low moderate-to-severe moderate to severe craniocerebral injury moderate to strong turbulence regime moderate-to-vigorous moderate toxemia of pregnancy moderate toxicity