Think about the values present and to what degree someone looking at those values will understand them.
考虑这里给出的值，想想看到这些值的人对它们的理解程度如何。
2
Once you provide access to chat, noting whether someone is present is a small step since many chat products already provide online awareness capability.
提供了聊天功能之后，检查某人是否上线就很简单了，因为许多聊天产品已经提供了上线感知功能。
3
Don't you know, young lady, "he said harshly," when you give someone a present there's supposed to be something inside the package!