undergrown怎么读，undergrown什么意思，undergrown短语和例句

1.Lowstand System Tracts of Early and Metaphse Jurassic Period was undergrown, of which Transgressive Systems Tract and Highstand Systems Tract made up.

早、中侏罗世低位体系域不发育，由海进体系域与高位体系域两部分组成。

2.Lowstand System Tracts of Early and Metaphse Jurassic Period was undergrown, of which Transgressive Systems Tract and Highstand Systems Tract made up.

早、中侏罗世低位体系域不发育，由海进体系域与高位体系域两部分组成。

3.To where it bent in the undergrown.

直到它消失在丛林深处。