Try to eat at least four slices of bread a day.每天尽量至少吃4片面包。Whatever its obscurities, the poem was clear on at least one count.这首诗再怎么晦涩，至少有一点是清楚的。The police say his death was an accident, officially at least.警方说他的死是个意外，起码...
The new drug lessens the severity of pneumonia episodes.新药减轻了肺炎发作时的痛苦。Polluted water lessens crop yields.受污染的水源会降低农作物产量。Alcohol lessens resistance to diseases.含有酒精的饮料会减弱对疾病的抵抗力....