Use Boolean operators to perform multiple keyword searches.

使用布尔运算符执行多个关键字搜索。

youdao

Standard Boolean operators are available, such as and, or, xor and not.

可以使用标准的布尔操作符，比如and、or、xor和not。

youdao

Standard Boolean operators are available, such as and, or, xor and not.

可以使用标准的布尔操作符，比如and、or、xor和not。

youdao