Meaning of ér:
而
and; as well as; and so; but (not); yet (not); (indicates causal relation); (indicates change of state); (indicates contrast)
Tā hěn cōngmíng, érqiě fēicháng nǔlì.
他很聪明，而且非常努力。
He is smart and very hardworking.
Tā yòu cōngmíng ér shànliáng.
他又聪明而善良。
He is intelligent as well as kind.
Tā hěn nǔlì gōngzuò, ér tā yě hěn yǒu tiānfù.
他很努力工作，而他也很有天赋。
He works very hard, and he is also very talented.
Wǒmen jìhuà qù lǚyóu, ér tā què juédìng liú zài jiālǐ.
我们计划去旅游，而他却决定留在家里。
We plan to travel, but he decided to stay home.
Tā nǔlì xuéxí, ér chéngjī zǒng shì bù lǐxiǎng.
他努力学习，而成绩总是不理想。
He studies hard, yet his grades are always unsatisfactory.
Tā nǔlì gōngzuò, ér qǔdéle chénggōng.
他努力工作，而取得了成功。
He worked hard and therefore achieved success.
Tā hěn lèi, ér yǐjīng kāishǐ dǎhāqiàn le.
她很累，而已经开始打哈欠了。
She is tired and has started yawning.
Tā xiǎng yào qù lǚxíng, ér wǒ gèng xiǎng dài zài jiālǐ.
他想要去旅行，而我更想待在家里。
He wants to travel, whereas I prefer to stay at home.
