drag
/dræg/
the phenomenon of resistance to motion through a fluid
中文释义：阻力；拖累
Aerodynamic design reduces drag and improves fuel efficiency.
空气动力学设计减少了阻力并提高了燃油效率。
The heavy backpack was a drag on his hiking speed.
沉重的背包拖慢了他徒步的速度。
/dræg/
the phenomenon of resistance to motion through a fluid
中文释义：阻力；拖累
Aerodynamic design reduces drag and improves fuel efficiency.
空气动力学设计减少了阻力并提高了燃油效率。
The heavy backpack was a drag on his hiking speed.
沉重的背包拖慢了他徒步的速度。