东四环的雪 East Fourth Ring of snow
四环素可的松眼膏 Tetracycline Cortisone Eye Ointment ; oculentum tetracyclini cortisone ; TETERCYCLINE AND CORTISON EYE OINTMENT
四周的环境 Personal environments
四环素引起的牙齿变色 Tetracycline Discoloration
四环素可的松 Tetracycline and Cortisone ; Tetracycline Cortisone Eye Ointment
四季的循环 the circle of the seasons
四环素醋酸可的松 Tetracycline and Cortisone Acetate
四环素醋酸可的松眼膏 Tetracycline Cortisone Eye Ointment
灭活或钝化四环素的酶 Enzymatic inactivation of tetracycline
它们的食物中含有四环素，这可能是古努比亚人斑疹伤寒发病率低的原因。
Tetracycline in their food probably explains the low incidence of typhus among ancient Nubians.
虽然HAART降低活跃的复制很有效，二甲胺四环素是对抗病毒的另一重要手段。
While HAART is really effective in keeping down active replication, minocycline is another arm of defense against the virus.
口服四环素可以降低感染的风险。
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