per

mỗi, trên

1. For each.Cho mỗi.
2. To each, in each (used in expressing ratios of units).Trên mỗi hoặc trong mỗi, dùng khi biểu thị tỷ lệ giữa các đơn vị.
3. By the, through the (with name of body part in Latin).
4. In accordance with, as per.
5. According to.

• Admission is £10 per person.
• Introduce the endoscope per nasum.
• The medication is to be administered per os.