常见例句The bus toiled up the steep hill.公共汽车艰难地爬上陡峭的山岗。The ground was muddy and uneven, but we toiled on.地面泥泞不平,我们仍吃力地向前走。The slaves toiled up the hill pulling the heavy blocks.那些奴隶艰难地把沉重的石块拖上山。 返回 toils