mercury

实验室里要小心处理水银，因为它有毒且易挥发。

Handle ___mercury carefully in the lab because it's toxic and volatile.

温度计中的液体是水银。

The liquid in the thermometer is ___mercury.

墨丘利穿着带翼凉鞋，在众神之间传递消息。

___Mercury, wearing winged sandals, delivered messages among the gods.