cobalt

钴化学

Most electric car batteries still rely on cobalt from a few countries.

多数电动车电池仍依赖少数几个国家出产的钴。

钴蓝、深蓝

She painted the kitchen wall a deep cobalt that brightened the room.

她把厨房墙面漆成深钴蓝，让整个空间亮了起来。

钴蓝色的、深蓝色的

He wore a cobalt shirt with pale gray trousers.

他穿了一件钴蓝色衬衫，搭配浅灰色长裤。