extra quantity

• 额外数量

extra quantity的用法和样例：

例句

1. The Saudis could simply pump out the extra oil unilaterally, but they will be greatly constrained by their desire to preserve OPEC unity.
   沙特可以单方增加额外数量的石油生产，但他们要保持欧佩克团结的意愿极大地束缚着他们。