periodic

💬 双语例句

1. He learnt the periodic table by heart just for fun.

   他背周期表只是为了好玩。

2. The more likely outcome is a sort of slow rotting effect, with periodic depreciations gradually driving down living standards for all who earn their living in sterling.

   更可能的出现结果是一种缓慢的腐烂效应，定期贬值逐渐降低了所有赚取英镑生活的人的生活水平。

3. And, indeed, within two years of taking power, Sadat expelled the Soviets from Egypt and began to build a friendship with the US that, despite challenges and periodic differences, has proven important and valuable ever since.

   事实上的确如此。 上台两年内，萨达特把苏联人驱逐出了埃及，而且开始与美国建立友谊。 尽管存在挑战和不时的分歧，这一友谊证明是重要的而且比以往更为具有价值。

🔗 常用搭配