These helper T-cells produce small signaling molecules called cytokines, which activate B-cells and macrophages.

辅助T细胞会产生些小的号分子，即细胞因子，激活B细胞和巨噬细胞。

The brain signal is a very, very small signal and muscle activity is very strong signal.

大脑号是常常小的号，而肌肉活动是常强的号。

At least in New England, we're seeing a small but important signal that conservation leads to job growth.

至少在新英格兰地区，我们看到了微小但很重要的号，即保护环境会带来就业增长。

Oh, and that's not all, every time we move, our muscles send off a small electrical signal.

哦，还有，每次我们移动时，我们的肌肉都会发出微小的电号。

I have always been fascinated with how small electrical signals in discrete parts of the brain lead to big behavioral changes.

我直对大脑离散部分的小电号如何导致巨大的行为变化着迷。

Sandstorm flashed him a questioning glance, but Fireheart gave a small signal with his tail and the orange she-cat sat down.

沙风询问地看了他眼，但火心用尾巴轻轻示意了下，橙色母猫坐下了。

The sympathetic nervous system is set up in such a way that even a small stress signal sent down one path could trigger a response in many effectors at once.

交感神经系统是这样建立的，即使是沿着条路径发出的微小压力号也能同时触发许多效应器的反应。

Investors are desperate for this turmoil over tariffs to be resolved, and they will likely latch on to any kind of a sign, which is why sometimes they magnify even the smallest signals from this administration, Lester.

投资者迫切希望这场关税纷争能得到解决，因此他们可能会抓住任何迹象，这也是为何有时他们会放大政府发出的哪怕最微小的号，莱斯特。