In the first method, one drop of this dilution is dropped into the conjunctival sac.

第一种方法是将一滴这种稀释液滴入结膜囊。

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In the first method, one drop of this dilution is dropped into the conjunctival sac.

第一种方法是将一滴这种稀释液滴入结膜囊。

youdao