director liability的用法和样例：
例句
- When duly appointed, an alternate or substitute director will, in the absence of the di-rector who appointed him, be entitled to perform all the functions of the latter.
适当地受委后，交替或后补董事在委任他的董事不在时，有权执行后者的所有职责。 - In the event that the chairman is unable to discharge his responsibilities, he shall empower a vice-chairman or another director to represent the joint venture.
董事长不能履行职责时，应授权副董事长或其他董事代表合营企业。
