形容詞 bumpy:

1. causing or characterized by jolts and irregular movements
   同義詞：rough, rocky, jolty, jolting, jumpy
2. covered with or full of bumps

1. The car bounced along the bumpy mountain road.
   汽車在崎嶇的山路上顛簸行駛。
2. The poor suspension gives a rather bumpy ride.
   因懸掛裝置性能差，行駛時很顛簸。
3. We braced ourselves for a bumpy landing.
   我們已做好準備，著陸時會很顛簸。
4. A bumpy country road.
   一條崎嶇不平的鄉(xiāng)村小路

bump.y

adj.（形容詞）
bump.i.er,bump.i.est
Covered with or full of bumps:
崎嶇不平的：布滿障礙物的：
例句：
a bumpy country road.
一條崎嶇不平的鄉(xiāng)村小路

Marked by bumps and jolts; rough:
顛簸的：顛簸的，起伏的；艱難的：
例句：
a bumpy flight.
一次顛簸的飛行

【引伸】
bump.ily
adv.（副詞）
bump.iness
n.（名詞）