词语

飞流直下飞流：指瀑布；直下：垂直泻下。瀑布垂直泻下。形容瀑布垂直泻下的壮观景象。

急转直下事态突变并且发展很快。例局势急转直下。英take a sudden turn and then develop rapidly; go into precipitous decline; have rapid-five development; take a sudden turn and then develop rapidly;

直下径直趋赴。谓径直实行下去。直接下达。垂直向下；向下。下面底下。谓直系下传。