1. urge or force (a person) to an action; constrain or motivate.
促进或命令某人做某事;抑制或者激发。

-- 来源 -- 汉英 - 翻译参考

2. This is not entirely frivolous; a strong magnetic field. for instance, can constrain electrons to move only along the field lines.
这不是完全无价值的,例如,强磁场可约束电子使之只能沿着场力线运动。

-- 来源 -- 英汉 - 辞典例句

3. These tastes and incomes constrain how the quantity demand will react to changes in price.
这些偏好和收入制约了数量的需求怎样对价格的变动作出反应。

-- 来源 -- 英汉 - 辞典例句

4. Given such a situation, governments have only two options: to address the fundamental policy issues or to further constrain growth.
如遇这样一种局势,政府只有两条路可走:不是去解决有关根本政策问题,就是限制经济的进一步增长。

-- 来源 -- 英汉 - 辞典例句

5. Land and other resources should not constrain the development of biomass as a renewable energy source for the future.
土地和其它资源应该不妨碍作为未来可更新能源的生物量的发展。

-- 来源 -- 英汉 - 辞典例句

6. A strong magnetic field can constrain electrons to move only along the field lines.
强磁场可约束电子使之只能沿着场力线运动。

-- 来源 -- 英汉 - 辞典例句

7. If they can, constrain him to belong to their desperate odd-fellow society.
要是可能,还要强迫他参加他们无可救药的畸形社会。

-- 来源 -- 英汉 - 辞典例句

8. In some cases, it’s also useful to constrain the resize to either a vertical, horizontal, or locked aspect ratio.
在某些情况下,让尺寸调整保持在水平方或者垂直方向上,或者是长宽比不变可能都非常有用。

-- 来源 -- About Face 3交互设计精髓

9. As with dragging, a meta-key is often used to constrain the direction of a resize interaction.
和拖动一样,元键在这里也可以用来约束调整尺寸操作的方向。

-- 来源 -- About Face 3交互设计精髓

10. When repositioning, a meta-key (such as Shift) is often used to constrain the drag to a single dimension (either horizontal or vertical). This type of drag is called a constrained drag.
当调整位置时,元键常常被用来限制拖动在一维上进行(水平或者垂直方向),这种类型的拖动叫做“约束拖动”。

-- 来源 -- About Face 3交互设计精髓