副詞 accidentally:

1. without advance planning
   同義詞：by chance, circumstantially, unexpectedly
2. in an incidental manner
   同義詞：incidentally, by chance
3. without intention; in an unintentional manner
   同義詞：unintentionally

1. He accidentally nudged the gatepost with the front of the car.
   他一不留神汽車的頭部碰上了門柱。
2. `Did he break it accidentally?' `No, on purpose.'
   ｀他是無意中損壞的嗎?＇｀不，是故意的.＇
3. He accidentally knocked on (the pass from Jones).
   他非故意犯規(guī)，用手向前擊了(從瓊斯傳來的)球。
4. Willie accidentally lets off his father's shotgun and made a hole in the wall.
   威利玩他父親的手槍時不小心走火了，把墻壁打出一個洞。