conserve

节约、节省、省著用

We turned off the air conditioning to conserve electricity.

我们把冷气关掉以节约用电。

保育、保护

The group works to conserve wetlands along the river.

该团体致力于保育河岸的湿地。

保存、维护

Special lighting is used to conserve the ancient paintings.

馆方使用特殊照明来保存这些古画。

守恒、保持不变物理

In a closed system, total energy is conserved.

在封闭系统中，总能量是守恒的。

保留、储备

Runners should conserve their energy for the final lap.

跑者应该保留体力应付最后一圈。

果酱、蜜饯

She spread homemade cherry conserve on her toast.

她在吐司上涂了自制的樱桃果酱。