In 1975, a primitive machine called the Altair, was launched in the USA.
1975年，美国推出了一台被称为“牛郎星”的原始机型。
新概念英语第三册 Lesson 51 Predicting the future

📚 句中词汇解析

从本句中提取的重要词汇

primitive ['prɪmətɪv] 词频2 词根: prim
adj. 原始的;发展水平低的;落后的;[生物学]原生的; n. 原始人;早期的艺术家（作品）;单纯的人：不世故的人;自学的艺术家;
💡 prim第一，主要+itive形容词后缀 →原始的
"All these drums remain from the primitive period."
这些鼓舞都带有原始遗存的含义。
近义：indigenous, native, original, autochthonal, autochthonic, autochthonous 反义：mod, new, newfangled, novel, recent, unworn
machine [mə'ʃin] 词频1
n. 机器，机械;机械般的人;核心; vt. 用机器制造，用机器加工; vi. 被机器切削;
💡 mach机器+ine表名词 → 机器
"I called several times, but only got the answering machine."
我打了几次电话，但只有电话答录机答话。
近义：system, setup, engine, machinery, hardware, lathe
called
a. 被呼叫的
近义：named, designate
Altair
n. 牵牛星
launched
v. 发射( launch的过去式和过去分词 ); [计算机]开始（应用程序）; 发动; 开展（活动、计划等）

📚 更多「新概念英语第三册」例句

After gazing at the display for several minutes, Mr. Taylor went back into his shop.
泰勒先生站在橱窗外凝神欣赏了几分钟就回到了店里。
After putting it on, Mrs.Richards went downstairs.
理查兹夫人穿上化装服后下了楼，
he always insisted that it should be written out in full.
但他还是坚持要求将信的全文写在信纸上。
Meanwhile, the meal gets burnt.
这时，饭又烧糊了。
What a relief it was when the boulders suddenly disappeared, giving way to a stretch of plain where the only obstacles were clumps of bushes.
突然大石块不见了，前面是一片平地，唯一的障碍只有一簇簇灌木丛。这使我们长长地松了口气。
for the monotonous rhythm of the wheels clicking on the rails soon lulls you to sleep.
车轮与铁轨间单调的嘎喳声很快就会送你进入梦乡。