如果确有必要，你可以向对方说明，自己只有和直接贸易伙伴建立链接关系的原则。
If necessary, explain you have a rule about not adding a connection until you've done business with that person directly.
如果不是，则不要该项，或者把它放到确有必要和有帮助的事项之后。
If it isn't, either leave it altogether, or make sure that you only do it after accomplishing the truly necessary and useful work.
如果确有需求，这些实验结果可以在落地后马上被提取，这对很多类型实验来说是很有必要的。
If requested, these experiments can be quickly accessed after landing, a feature critical to many types of experiments.
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