There was a metallic taste at the back of his throat.

他喉咙深处有一股金属的腥味。

《柯林斯英汉双解大词典》

Other indicators of ketosis include a metallic taste in the mouth, or bad breath.

其它的酮症标志包括嘴里的金属味或口臭。

youdao

For the first time in your life you taste the real taste of food rather than this mineral metallic taste.

你应该在你的人生中第一次品尝食物的真正味道而不是这种金属矿物质的味道。

youdao

First her neck starts to ache and then her mouth gets a metallic taste.

FORBES: How To Snap Yourself Out Of A Bad Mood

Because it has a metallic taste, it can only be used in small amounts and then has to be mixed with other substances that mask its flavors.

FORBES: Salt: A Favorite Ingredient Gets A Molecular Makeover