外博词典，懂英语单词快速记忆法的在线英语词典
常用短语
-
需求预测
场景例句
-
Snow is forecast for tomorrow.
预报明天有雪。
《牛津词典》
-
Rain is forecast for the weekend.
预报周末有雨。
《牛津词典》
-
Cooler weather is forecast for the weekend.
预报本周末天气较凉。
《牛津词典》
更多双语例句 »
近义词
同义词辨析
-
词根： -cast- 扔，投，撒
-
cast [kæst] vt. 铸造；投掷；投射；脱落，脱皮 n. 铸型；演员表；轻微的斜视；投，掷骰 vi. 掷，投；计算，加
cast: -cast-扔，投 → 浇铸：把融化的铁水扔到模具里，计算：扔石子来计算，演员阵容：投射在屏幕上的演员名单
-
forecast [ˈfɔrkæst] vt. 预报，预测；预示 vi. 预报，预测 n. 预报；预言
forecast: fore-在前 + -cast-扔 → 提前扔出来的话 → 预报，预测
-
broadcast [ˈbrɔdkæst] vt. 广播；播放；使广为人知；尤指用手播（种） vi. 播放节目；参加电台、电视节目的演出；发送传递信号，传播 n. 广播；电台、电视节目；播放时间；播种 adj. 广播的；播音的；广泛散布的
broadcast: broad 广 + -cast-撒 → 广泛地撒播 → 播种 → 引申词义散布，传播 → 20世纪20年代指无线电广播
单词家谱
forecast (v.)
late 14c., "to scheme," from fore- "before" + casten in the sense of "contrive, plan, prepare" (late 14c.; see cast (v.)). Meaning "predict events" first attested late 15c. (cast (v.) "to perceive, notice" is from late 14c.). Related: Forecasting.
Whether we are to say forecast or forecasted in the past tense & participle depends on whether we regard the verb or the noun as the original from which the other is formed; ... The verb is in fact recorded 150 years earlier than the noun, & we may therefore thankfully rid ourselves of the ugly forecasted; it may be hoped that we should do so even if history were against us, but this time it is kind. [Fowler, 1926]
forecast (n.)
early 15c., "forethought, prudence," probably from forecast (v.). Meaning "conjectured estimate of a future course" is from 1670s. A Middle English word for weather forecasting (also divination by reading signs in the clouds or weather) was aeromancy (late 14c.).
