1
a forecaster of [field]
介词 of 后接所预测的领域或对象。
She is a forecaster of economic trends.
她是经济趋势的预测员。
预报员；预测者
先理解核心含义，再看它在真实句子里的用法。
预报员；预测者
a person who predicts what will happen in the future, often based on special knowledge
She is a forecaster of economic trends.
她是经济趋势的预测员。
预报员；预测者。
A person who forecasts.
预测软件或算法；预报程序。
A software program or algorithm that forecasts.
The weather forecaster said it would rain this afternoon.
天气预报员说今天下午会下雨。
The company hired a financial forecaster to help plan next year's budget.
公司聘请了一位金融预测专家来帮助规划明年的预算。
Many forecasters expected the economy to improve, but it did not.
许多预测者原本预计经济会好转，但并没有。
介词 of 后接所预测的领域或对象。
She is a forecaster of economic trends.
她是经济趋势的预测员。
forecaster 常作主语，后接表示预测或陈述的动词及 that 从句。
Forecasters predict that temperatures will rise next week.
预报员预测下周气温将上升。
as 后接职业名词，说明某人的工作身份。
He works as a forecaster for the national weather service.
他在国家气象局担任预报员。
Not this
I will forecaster the weather tomorrow.
Use this
I will forecast the weather tomorrow.
forecaster 是名词，意为“预报员”，不能放在 will 后面；will 后应接动词原形，应使用动词 forecast（预报）。不要被名词后缀 -er 误导。
Not this
There are two forecaster in the office.
Use this
There are two forecasters in the office.
forecaster 是可数名词，中文没有复数词尾变化，但在英语中 two 后必须用复数形式 forecasters（加 -s）。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
天气预报员
The weather forecaster said it would rain tomorrow.
天气预报员说明天会下雨。
经济预测专家
An economic forecaster predicted a slowdown in growth.
一位经济预测专家预测增长将放缓。
专业预测员
Professional forecasters often revise their estimates.
专业预测员经常修正他们的估算。
预报员预测
Forecasters predict heavy snow for the weekend.
预报员预测周末有大雪。
预报员预计
Forecasters expect temperatures to drop sharply tonight.
预报员预计今晚气温将骤降。
Use forecaster naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记忆联想：fore（向前）+cast（抛）+-er，想象预报员把预测抛向未来，所以是预报员。
语域：neutral 常见场景：天气预报、经济预测、体育赛事预测 该词多用于正式或半正式的书面语和新闻报道中，例如天气预报、经济展望等；日常口语中则较少单独使用，常被更具体的说法替代。
Words ending in -caster all have the sound /kɑːstə/ and are useful spelling-sound matches for forecaster. Be careful with master and disaster: they are spelled with -aster, and their final part sounds like /ɑːstə/ without the /k/, so they do not rhyme with forecaster. None of the listed words rhymes fully with forecaster, because the stress falls on the first syllable /fɔː/.
Dictionary facts from ECDICT, WIKTIONARY.