夜中に激しい痛みで目が覚めた。
I woke up in the middle of the night with severe pain.
この業界は競争が激しい。
Competition is intense in this industry.
山の天気は変化が激しいので注意が必要だ。
The weather in the mountains changes drastically, so you need to be careful.
この道は車の往来が激しくて危ない。
This road is dangerous because the traffic is so heavy.