If there is significant swelling within a joint, you will lose range of motion — the limb will only go so far in each direction.
如果关节存在严重的肿胀，就会无法活动——肢体在每个方向上的活动范围都十分有限。
2
It's important to envision a range of short - and longer-term future scenarios if you're not absolutely sure what your future direction will be.
如果你对你未来的方向不是绝对确定的话，设想一个从短期到长期的未来情景是很重要的。
3
This is, admittedly, a very crude filtering mechanism, and any real scene engine would likely have a range of variables that would affect the direction of a person through the scenario.