1、There came a day when the first premonitory blast of winter swept over the city.
天，預示嚴冬即將來臨的第一陣寒流侵襲了城市。

2、What premonitory signs and symptoms may exist for vasovagal syncope? 1.
血管迷走神經(jīng)性暈厥出現(xiàn)的先兆癥狀和體征有哪些？

3、Since it is a rare disorder, it is difficult to say what the premonitory symptoms are.
由于這是一種罕見的病癥，我們很難說清楚它的初期癥狀。

premonitory翻譯