seize on什么意思？

seize on的音标：seize on的英式发音音标为：[si:z ɔn]seize on的美式发音音标为：[siz ɑn]...

All organic beings are striving to seize on each place in the economy of nature.一切生物都争取自然机体中的地位.People will seize on any opportunity to reduce competition.人们会抓住一切机会减小竞争.I never dreamed how the Chinese would seize on this...