pike

n. 矛,梭子鱼,通行费
v. 用矛刺杀,刺

Soldiers in ancient time usually fight with pikes and shields.

古代的战士们通常用长矛和盾牌战斗。

Some freshwater fish such as pike can withstand levels of acidity.

一些诸如梭鱼等淡水鱼可以抵御相当程度的酸性。