[译] 流体力学是物理学的一个分支。
[误] Liquid mechanics is a branch of physics.

[正] Fluid mechanics is a branch of physics.
[注] 形容词 liquid 意为"液体的"，fluid 意为"流体的"。如：Water is liquid but air is not. 水是液体，空气却不是。/Water and air are both fluid. 水和空气都是流体。/The solid and liquid particles that are suspended in the atmosphere come from many different sources. 垂悬于大气中的固体和液体粒子来源不同。