Expressing "in addition" with "lingwai"

另外 (lìng wài) can be used to express "in addition," often with 还 or 还 used in the following phrase.

Using as a Conjunction

⋯⋯，另外，⋯⋯

希望你不要再迟到了。另外，你应该穿得正式一点。Xīwàng nǐ bùyào zài chídào le. Lìngwài, nǐ yīnggāi chuān de zhèngshì yīdiǎn.I hope you won't be late again. In addition, you should also dress a little more formally.
美国跟中国不一样，美国没有中国人口多。另外，美国是发达国家，中国是发展中国家。Měiguó gēn Zhōngguó hěn bù yīyàng, Měiguó méiyǒu Zhōngguó rénkǒu duō. Lìngwài, Měiguó shì fādá guójiā, Zhōngguó shì fāzhǎnzhōng guójiā.America is very different from China. Its population is not as big as China. In addition, America is a develop country while China is a developing country.

另外 + [Verb Phrase]

这里是 VIP 室，要另外付费才能用。Zhèlǐ shì VIP shì, yào lìngwài fùfèi cái néng yòng.This is the VIP room. You will have to pay more in order to use it.
今天我没空去，能不能另外安排时间？Jīntiān wǒ méi kōng qù, néng bu néng lìngwài ānpái shíjiān?I don't have time to go today. Can you schedule it another time?
这些游戏每次都玩，我建议你另外再想几个游戏。Zhèxiē yóuxì měi cì dōu wán, wǒ jiànyì nǐ lìngwài zài xiǎng jǐ gè yóuxì.We play these games every time. I suggest you think of a few more games.
如果学生觉得不难，老师可以另外再加一些学习内容。Rúguǒ xuéshēng juéde bù nán, lǎoshī kěyǐ lìngwài zài jiā yīxiē xuéxí nèiróng.If the students don't find the lesson difficult, the teacher can add more learning materials.

When used as a pronoun, 另外 can also be used to denote "the other" and there is no need to add 的 after 另外.

另外 + Noun Phrase

我有两个手机，一个是小米，另外一个是 iPhone 。Wǒ yǒu liǎng gè shǒujī, yī gè shì Xiǎomǐ, lìngwài yī gè shì iPhone.I have two cell phones. One is Xiao Mi, and the other is iPhone.
她有两套房子，一套自己住，另外一套租出去了。Tā yǒu liǎng tào fángzi, yī tào zìjǐ zhù, lìngwài yī tào zū chūqù le.She has two houses. She lives in one and rents out the other one.
我买了三张票，一张是我的，另外两张是给朋友的。Wǒ mǎi le sān zhāng piào, yī zhāng shì wǒ de, lìngwài liǎng zhāng shì gěi péngyou de.I bought three tickets. One is for myself, and the other two are for my friends.
这几本书我今天拿走，另外几本下次再拿。Zhè jǐ běn shū wǒ jīntiān názǒu, lìngwài jǐ běn xià cì zài ná.I will take these books today. I can take the others next time.
跟他一起去的另外两个人已经死了。Gēn tā yīqǐ qù de lìngwài liǎng gè rén yǐjīng sǐ le.The other two people who went with him already died.