and: [OE] A word as ancient as the English language itself, which has persisted virtually unchanged since at least 700 AD, and has cognates in other Germanic languages (German und, Dutch en), but no convincing ultimate ancestor for it has been identified
and (conj.)
Old English and, ond, originally meaning "thereupon, next," from Proto-Germanic *unda (cognates: Old Saxon endi, Old Frisian anda, Middle Dutch ende, Old High German enti, German und, Old Norse enn), from PIE *en; cognate with Latin ante, Greek anti (see ante). Phrase and how as an exclamation of emphatic agreement dates from early 1900s.
实用例句
1. " And " , " but " and " whereas " are conjunctions.
and, but 和whereas是连词.
来自《简明英汉词典》
2. Remember, keep a positive attitude and good things will happen.
记住：保持乐观的心态，好事自然会发生。
来自美剧《摩登家庭》
3. The world breaks everyone, and afterward, many are stronger at the broken places.
生活总是让我们遍体鳞伤，但到后来，那些受伤的地方会变得更坚强。
来自金山词霸 每日一句
4. For what do we live, but to make sport for our neighbours, and laugh at them in our turn?
我们活着是为了什么？不就是给邻居当笑柄，再反过来笑他们。
来自《傲慢与偏见》
5. When life gets hard and you want to give up, remember that life is full of ups and downs, and without the downs, the ups would mean nothing.
