Make something smaller in amount, size, price, or intensity.

使数量、规模、价格或强度减少

• 减肥

Lose weight; become thinner.

降低等级或地位；降职

• 征服或控制
• 使陷入低下或不体面的状态

Bring someone or something to a lower or worse state; demote.

• Force into a particular condition.

通过熬煮蒸发水分使液体收浓

• 将酱汁熬至更浓更稠

Boil a liquid to evaporate water and thicken the mixture.

化学反应中得到电子或去除氧

• 去除非金属元素以从矿石提取金属

Cause a substance to gain electrons or lose oxygen; chemically reduce.

在不改变数值的情况下化简表达式或方程

• 将问题化归为另一个已知问题或算法

Simplify an expression, fraction, or problem to a simpler form.

将骨折或关节脱位复位到正确位置

Restore a fractured or dislocated bone to proper alignment.