儿茶

ér chá bù néng tí gōng shí wù

儿茶不能提供食物。

Wadalee-gum-tree is not a source of food.

ér chá hěn bù cháng jiàn

儿茶很不常见。

Cachou is not widely seen.

ér chá tí qǔ wù hěn zhòng yào

儿茶提取物很重要。

The extract of catechu is scientifically important.

ér chá tí qǔ wù xū yào gèng duō cè shì

儿茶提取物需要更多测试。

The extract of catechu should be further tested.