"18 Colored Pencils" is the Engpsh equivalent for "十八支铅笔".
The origin of the term "colored pencils" comes from the fact that these pencils have pigments added to them, which allows them to produce a wider range of colors compared to normal graphite pencils.
Example sentence in Engpsh:
"I bought a set of 18 colored pencils to use for my drawings."
中文翻译: "我买了一套十八支彩色铅笔，用来画画。"