a necessary condition的意思|示意

A creation of philosophy with global meanings is a necessary condition for China to become a world power.

创造有世界意义的哲学是中国作为世界大国的必要条件。

Time is thus a necessary condition to achieve the previously stated objectives of arbitrage and cooperation.

由此，时间是一个实现之前所提到的利益寻租和合作目标的必要条件。

It's a necessary condition for many worthwhile things: child care, friendships, etc.

对于许多有价值的事情而言，如儿童看护和友谊等，它是必要的条件。

Professional employment is a necessary condition, not a sufficient condition.

专业是就业的一个必要条件，不算是充分条件。

But legal training is not a necessary condition for good relationships.

但是法律训练不是良好人际关系的必要条件。

Sports and exercise can improve the health of human body and man of optimism, but the optimism is a necessary condition of longevity.

体育和运动可以增进人体的健康和人的乐观情绪，而乐观情绪却是长寿的一项必要条件。