caltrop
n. 铁蒺藜；矢车菊；菱
例句
Objective: To analyze the constituents of essential oil from the skin of water caltrop.
目的：分析菱壳粉末中挥发性成分。
Lotus pond under the leaves are beautiful fish in the clear water of the play our edge is taken after some caltrop.
池塘荷叶荷花下是美丽的小鱼在清澈的水总嬉戏，我们边划边采一些菱角。
No matter how the caltrop tire spike was tossed on a roadway or airport runway, it would land with a tire-puncturing prong facing upward.
不管怎么扔，这款铁蒺藜轮胎刺都能用向上的一面扎破汽车或飞机的轮胎。
