last will and testament是法律文本中常见的配对词，只译作“遗嘱”。

可以看其英文释义：

A last will and testament is a legal document that communicates a person's final wishes pertaining to assets and dependents. A person's last will and testament outlines what to do with possessions, whether the deceased will leave them to another person, a group or donate them to charity, and what happens to other things that they are responsible for, such as custody of dependents and management of accounts and financial interests. Some states do allow for non-standard or unusual wills, such as a holographic will, while others do not.

（摘自https://www.investopedia.com/terms/l/last-will-and-testament.asp）