gem

noun

1. art highly prized for its beauty or perfection

Synonym: treasure

2. a precious or semiprecious stone incorporated into a piece of jewelry

Synonym: jewelprecious stone

3. a sweet quick bread baked in a cup-shaped pan

Synonym: muffin

4. a person who is as brilliant and precious as a piece of jewelry

Synonym: jewel

5. a crystalline rock that can be cut and polished for jewelry

e.g. he had the gem set in a ring for his wife
she had jewels made of all the rarest stones

Synonym: gemstonestone

1. 宝石
A gem is a jewel or stone that is used in jewellery.

e.g. ...a gold mask inset with emeralds and other gems.
一张镶有翡翠和其他宝石的金面具

2. 难能可贵的人（或物）；令人非常惬意的人（或事物）；精品
If you describe something or someone as a gem, you mean that they are especially pleasing, good, or helpful.

e.g. ...a gem of a hotel, Castel Clara...
卡斯特尔·克拉拉酒店，酒店中的明珠
e.g. Miss Famous, as she was called, was a gem.
“知名小姐”人如其名，是个尤物。

1.

1. gem：the growth enterprises market; 创业板市场

2. gem：genetically engineered microorganisms; 基因工程菌

3. gem：the growth-enterprise market; 创业板

4. gem的翻译

4. gem：gemeitabine; 吉西他滨