The smile froze on his face.
彼の笑っていた顔が急にこわばった
The stock market broke in October 1929.
１９２９年の１０月に株式市場が急落した
The temperature drops sharply at night.
気温は晩に急激に下がる
The temperature fell sharply last night.
昨晩気温が急激に下がった
The weather [The storm] broke (up).
急に天気が崩れた［あらしが起こった］
The wind rose suddenly.
急に風が出てきた
There was a sudden drop in temperature before the rain.
雨の降る前に急に気温が下がった
There's no hurry (about [with] it).
別に急がなくてもいいよ
There's no rush.
急ぐ必要はないよ
These data are screaming to be clustered!
このデータは至急処理しないと
