ominous
adj
suggesting that sth bad is about to happen; threatening 不祥的; 不吉的; 险恶的
an ominous silence 不祥的静寂
Those black clouds are/look a bit ominous. 乌云压顶, 来势不妙.
Yes, I see. How can they get rid of waste water in this way? What a terrible colour the sea is now! It looks as if our class won't be able to bathe at all.
是的,我看见了。他们怎么能这样排放废水呢?海水的颜色多么可怕呀!看来我们班同学根本不能在这里游泳。
What should I do? Maybe I should have told that workmate I knew what he was doing.