英语语法分析

Fluorin can avoid brown striation and whiten skins.

氟：能消除褐色斑，使皮肤变白。

Fluorin element is one of 14 necessary trace elements in body.

氟是人体必需的14种微量元素之一。

Objective: To research the curative effectiveness and safety of muscle injection for curing children fluorin acetamide poisoning.

目的：探讨乙酰胺肌注治疗儿童氟乙酰胺中毒的疗效与安全性。