This is when we have those double quotation marks, don't miss a single word, and cite the person who made the statement.

这时，我们要使用双引号，不要漏掉任何一个词，并引证说出这句话的人。

Generally, we recommend using double speech marks to quote what someone said, and single speech marks for everything else.

通常，我们建议使用双引号来引用某人所说的内容，而在其他所有内容中使用单引号。