This is a major achievement because, in relative terms, planets are very small and old not emit light.
这是一个重要的成就，因为相对来说，行星很小，而且也不发光。
新概念英语第三册 Lesson 55 From the earth Greetings

📚 句中词汇解析

从本句中提取的重要词汇

major ['medʒɚ] 词频1 词根: maj
adj. 主要的;重要的;大调的;主修的（课程）; n. 主修科目;大调;陆军少校;成年的; vi. <美>主修，专攻;[美国英语][教育学]主修(in);专攻;
💡 maj大+or...的 → 较大的；主要的
"We don't anticipate any major problems."
我们预料不会发生什么大问题。
近义：specialise, specialize, warden, commandant, commander, line 反义：associate, attache, parallel, auxiliary, accessorial, accessory
achievement [ə'tʃivmənt] 词频2 词根: 头
n. 完成，达到;成就，成绩;
💡 achieve 达成+ ment表示行为、行为的过程或结果 → n.成绩,成就；实现,完成,达到
"the greatest scientific achievement of the decade"
这十年最伟大的科学成就
近义：hit, arrival, attainment, performance, prodigy, prowess 反义：infelicity, irregularity, lapse, miss, overthrow, shortcoming
because [bɪ'kɔz] 词频1 词根: be
conj. 因为;
💡 cause, cuse 表原因,目的;司法程序,诉讼
"He was arrested because of his political affiliation."
他因所属政党的关系而被捕。
近义：since, whereas, for, forasmuchas
relative ['rɛlətɪv] 词频2 词根: lat
adj. 相关的;相对的;相互有关的;比较而言的; n. 亲属，亲戚;相关物;亲缘植物（或动物）;[语法学]关系词;
💡 relat=relate联系+ive名词后缀，表人 →亲戚
"Relative to the size, the city is sparsely populated."
与其面积相比, 这个城市的人口是稀少的.
近义：kin, kindred, kinsman, relation, congener, pertaining 反义：outlander, outsider, auslander, tramontane, alien, foreigner
terms [['tɛ:mz]]
n. 条件, 条款, 费用, 价钱, 关系, 地位, 交谊\\n[经] 条件
近义：bases, stipulations, conditions

📚 更多「新概念英语第三册」例句

When you rescued your trousers, did note in your back pocket? When you rescued your trousers, did you find the note was whiter than white?
当你把裤子抢救出来时，你有没有发现那张纸币已经变得比白纸还白？
Though the costume consisted only of a sheet, it was very effective.
尽管化装服仅由一个被单制成，却十分逼真。
As we were walking past a shop, he held a diamond firmly against the window and made a deep impression in the glass.
我们路过一家商店时，他将一颗钻石使劲地往橱窗上一按，在玻璃上留下一道深痕。
No one discovers a rarity by chance.
无论是谁都不会一下子就发现一件珍品。
No matter what the conditions were, he believed that a car should be driven as fast as it could possibly go.
他认为不管路面情况如何，车必须以最高速度前进。
The day after the birth of the five children, an aeroplane arrived in Aberdeen bringing sixty reporters and photographers.
五胞胎降生第二天，一架飞机飞抵阿拜丁，随机带来60名记者与摄影师。