1. the last extremity : 绝境,死；
2. be at extremity : 临终；
名词
1. 尽头;末端
The extremity of something is its furthest end or edge.
2. （身体的）末端，末梢;（尤指）手脚
Your extremities are the end parts of your body, especially your hands and feet.
3. 极度;极端
The extremity of a situation or of someone's behaviour is the degree to which it is severe, unusual, or unacceptable.
1. an external body part that projects from the body
e.g. it is important to keep the extremities warm
2. that part of a limb that is farthest from the torso
3. the outermost or farthest region or point
4. the greatest or utmost degree
e.g. the extremity of despair
5. an extreme condition or state (especially of adversity or disease)