invisible是隐形的意思，而guideline则是指南的意思，区别可以从以下例子看出：
Please follow the guidelines you have been told, even it is invisible, you still need to follow them. 请遵循您被告知的准则，即使它是不可见的，您仍然需要遵循它们。
invisible是隐形的意思，而guideline则是指南的意思，区别可以从以下例子看出：
Please follow the guidelines you have been told, even it is invisible, you still need to follow them. 请遵循您被告知的准则，即使它是不可见的，您仍然需要遵循它们。
