lu
lu — 縮寫
1. the two-letter symbol 'Lu' used in chemistry to represent the element lutetium,
鎦
化學元素，符號 Lu
the two-letter symbol 'Lu' used in chemistry to represent the element lutetium, a silvery-white rare metal that is one of seventeen similar elements in a special group on the periodic table
In chemistry class, Ziad pointed to Lu on the periodic table chart.
化學課上，Ziad 指著週期表上 Lu 的位置。
pointed to + [symbol] on the periodic table
During the science quiz, Nadia correctly wrote 'lutetium' next to the symbol Lu.
自然科小考時，Nadia 在符號 Lu 旁邊正確寫下「lutetium」。
symbol + [element name] correspondence in a quiz context
Wei was surprised to learn that Lu is one of the rarest metals on the whole periodic table.
Wei 驚訝地發現 Lu 是整張週期表上最稀有的金屬之一。
one of the rarest [metals] on the periodic table
Small amounts of Lu are found in minerals across northern Canada and Scandinavia.
少量 Lu 存在於加拿大北部和斯堪地那維亞半島的礦物中。
passive: are found in [location]
Mei read in her science book that Lu is added to special types of glass for scientific instruments.
Mei 在自然課本上讀到 Lu 被添加在科學儀器用的特種玻璃中。
passive: is added to [material] for [purpose]