These things also happen in good weather and without warning. Ships just seem to vanish into thin air.

而且，这些事情恰巧都发生在好天气里，更没有任何先兆，那些船只就像是消失在了空气中。

youdao

The young woman was breezing along in the lefthand lane when suddenly, and without warning, she made a sharp right turn and almost slammed into another car.

年轻女子在左边车道上轻快地开着车。突然，也没有任何指示，她向右急拐，险些撞上另一辆车。

youdao

i took a broom to their country and smashed and sliced without warning without stopping and i smiled all the time i was doing it.

VOA: special.2010.04.18

But even when parents follow all the guidelines, putting their babies to sleep on their backs, removing blankets and stuffed animals from their cribs, infants still die without warning.

VOA: standard.2010.02.08

Secretary Gates said there are some "exaggerated concerns" in the region that a so-called "grand bargain" with Iran will be negotiated in secret and then sprung on the region without warning.

VOA: standard.2009.05.05

But sometimes the reality is that defining moments of history come suddenly and without warning.

BBC: In full: Brown's speech to Congress

He told The Wall Street Journal in a telephone interview that the blast happened quickly and without warning.

WSJ: Guides Recall Escape From Philippine Volcano

He told The Wall Street Journalthat the blast happened quickly and without warning.

WSJ: Guides Recall Escape From Philippine Volcano