1.ominous black clouds; ominous rumblings of discontent.
不祥黑云;有威不满之声
2.Those black clouds look ominous for our picnic.
那些乌云对我们野餐来说是个不祥之兆。
3.there were ominous dark clouds gathering overhead.
空中有预兆凶险乌云聚集。
4.This ominous, goateed man waves a pocket watch back and forth, guiding his subject into a semi-sleep, zombie-like state.
这个不吉、尖胡子男人来回晃动一只怀表,引导他受测人进入了一个半睡眠、僵状态。
5.The ancient people considered the blood,amnionic fluid,lochia and etac as filthy and ominous materials,which will desecrate the inviolability,and drew up much abstinence of lunaria and birth.