| 释义 |
DEFINITIVE EXAMPLES 权威例句〔doddle〕Lecturing to those naughty students is no doddle.给那些淘气学生讲课不是件容易的事情。英汉大词典〔pain〕I took great pains to distinguish cultured pearls from genuine pearls.我花了大力气学习辨别自然珍珠与人工养殖的珍珠。英汉大词典〔sferics〕The study of atmospherics, especially using electronic detectors.大气学：对大气的研究，尤指用电子仪器美国传统〔stretching〕He would study for eight to ten hours at a stretch.他会一口气学习 8 到 10 个小时。柯林斯高阶 |