1.form relationship 建立关系

例句：I stumbled across some of their senior leaders and began to form a relationship through our tweets.

我偶然碰到了他们当中一些高年级的领导并且通过我们呼吁形成了合作关系。

2.lead to 导致

例句：Heart failure led to her father's death.

心力衰竭导致她父亲的死亡。

3.natural instinct 本能

例句：In good societies it is the natural instinct to invest most in the young.

在良好的社会中，尽量给年轻一代投资是社会一种很自然的本能。

4.a pair of 一对

例句：A pair of lasers arranged at right angles to one another write data into the cuvette by shining in turn on"slices" through the plastic matrix.

此时，一对事先调整到一个合适角度的激光器通过塑料矩阵轮流在“切片”上闪烁，这样就把数据写入试管。