2 sentences for 类型 (lèi​xíng — data type)

1. 在编写代码之前，你需要先确定变量的类型。

   zài biān​xiě dài​mǎ zhī​qián, nǐ xū​yào xiān què​dìng biàn​liàng de lèi​xíng.

   Before writing code, you need to determine the types of the variables.

   Source: Dong Chinese Dictionary

2. 在计算机科学中，布尔类型只有真和假两个值。

   zài jì​suàn​jī kē​xué zhōng, Bù'ěr lèi​xíng zhǐ​yǒu zhēn hé jiǎ liǎng gè zhí.

   In computer science, the Boolean type has only two values: true and false.

   Source: Dong Chinese Dictionary