不加。“changeisagoodthing”这个短语中，“change”是主语，“is”是系动词，“agoodthing”是表语，因此，正确的语法结构是“changeisagoodthing”，不需要在“change”前面加“a”。
一定加a。“Changeiagoodthing”是一个固定表达，意思是改变是好事。在这个表达中，“a”是必须的，因为“thing”是一个单数可数名词，需要用不定冠词“a”或“an”来修饰。
Change is not always a good thing. It may force us out of tired habits and impose better ones upon us, but it can also be stressful, costly and even destructive. What’s important about change is how we anticipate it and react to it. Change can teach us to adapt and help us develop...
Change is a good thing ...(From The Top)(periodicals sent to school libraries, armed forces, students awareness)(Brief Article)(Editorial)Wadsworth, Ted
'There's your change.' — 'Thanks very much.'... “您的找头。”——“多谢。” 柯林斯高阶英语词典 They told the shopkeeper to keep the change. 他们告诉店主不用找钱了。 柯林斯高阶英语词典 Thieves ransacked the office, taking a sack of loose change... 窃贼洗劫了办公室,拿走了一口袋散币...
syn: change, alter both mean to make a difference in the state or condition of a thing. To change is to make a material or radical difference or to substitute one thing for another of the same kind: to change a lock; to change one's plans. To alter is to make some partial change...
"As a matter of fact, I understand most businesses believe that NAFTA has increased export to Canada and Mexico. So that's a good thing for the United States. Here in Imperial County, it's a good thing because we have the trade that is going back and forth. We believed it has not ...
to say anything in front of the crowds. I used to have bad grades because I didn’t like reading books. However, when I entered middle school, my hobbies changed most. Now I have realized the importance of reading. Just as the old saying g...
how you giving this a try and you don't got no patience you don't even love yourself your heart is filled with hatred try to take your mind away take you on vacation i don't know what i should do you don't hear me lately circling round the same thing on a daily you ain't you...
It'snottheproductofsomemagical, impulsiverevelationbutagradualprocessofsteadilynudgingourlivesinapositivedirection.它不是某种带有魔法、冲动的启示产物，而是一个循序渐进的过程，稳步推动我们的生活朝着积极的方向发展。Inotherwords, consistencyiskey.换句话说，坚持不懈是关键。Dayafterday, youneedtomakegooddecisions...