1.flow to 流向

These fields are required for the flow to function correctly.
要使消息流正确运行，这些字段是必需的d@Bi@gcz&tOf(pl。

Therefore using control flow to depict events is not a good idea.
因此使用控制流来描述事件并不是一个好主意z=pG(*2I@|。

2.lead to 导致；通向

This can lead to significant distress, but have no fear!
这可能导致巨大的压力，但是不要害怕！

I believe that his friends, above all Halifax, came to the conclusion that he must berooted out of the life he was leading at Trinity which must soon lead to decay ofmind and health.
我相信他的朋友们，首先是哈利法克斯得出这样的结论：他必须从在三一学院沿循的生活中拔出脚来，否则它必定很快会导致精神和健康的衰落SgDfumQM5&ZET99。

3.chemical signal 化学信号

Or, if the chemical signal's danger, they will flee?
或者，化学信号是危险，它们就会逃跑吗？

The mechanism that triggers the final form could be a chemical signal, for instance.
例如，触发了最终形状的机制可能是一个化学信号;xa;*6nt-auC+q-LHy!。