Keeping the accounts is part and parcel of my job.

记账是我的主要工作。

Learning about life in a new culture is part and parcel of what newcomers to America face.

学习在一种新的文化中生活是每一个新来美国的人要面对的事情中的重要部分。

Since communication between people from different countries has become increasingly frequent, learning about other cultures has become part and parcel of people's life now.

因为来自不同国家的人民交流越发频繁，了解另一种文化也已经成为人们生活中的重要部分。

That is fine. It is part and parcel.

它是这个运动的一个部分。

What is part and parcel of his lecture?

词汇和语法是英语学习的主要部分。