Definition: an advantage or useful quality Level: C2
在线学习的一大优点是它的灵活性。
The great ___virtue of online learning is its flexibility.
现代技术提供了许多优点，包括效率和便利性。
Modern technology offers numerous ___virtues, including efficiency and convenience.
这种方法的一个关键优点是它的成本效益。
One key ___virtue of this approach is its cost-effectiveness.
