However, there would also be some new optional subjects, for example, literary appreciation, astronomy, biochemistry, etc.

然而，也会有一些新的选修课程，例如文学欣赏、天文学、生物化学等。

youdao

23 courses in elective and optional subjects to provide breadth and depth to your program is accordance with your personal objectives.

的翻译是：23课程，选修课程可选课程，提供广度和深度，您的程序是根据您的个人目标。

youdao

23 courses in elective and optional subjects to provide breadth and depth to your program is accordance with your personal objectives.

选修课有23门，使你扩展专业知识，以便更符合你的个人目标。

youdao

The new Welsh Bac involves a core of subjects such as communication and numeracy skills and European awareness, with optional subjects from courses already on offer such as A-levels and GNVQs.

BBC: NEWS | UK | Education | Pros and cons of replacing A-levels

However, the QCA said 35% of schools were already presenting the subjects as optional.

BBC: NEWS | UK | Education | Language teaching 'too boring'