See, hydra bodies are really simple: one head and one foot lined up along a single body axis.

看，水螅的身体真的很简单：一个头和一只脚沿着一个身体轴排成一行。

The presidential campaign has exposed deep foot lines in Austrian politics, and the increasing weakness of the establishment parties of the centre-left and centre-right.

本次奥地利的总统选举暴漏出其政治的诸多问题，以及政党之间的矛盾。