The difference is approximately how much fluid they have lost-and not yet replaced.
这个差异基本上就是他们所排出的液体——当然是为补水前。
New blood vessels sprout under the retina, leaking blood and fluid. The macula swells and becomes scarred, and central vision can be lost in weeks.
视网膜下血管增生，血液和液体渗漏，黄斑水肿结疤，中心视力在几周内消失。
Replaces fluid and electrolytes lost during diarrhea and vomiting; helps prevent dehydration.
取代液体和电解质丢失期间腹泻和呕吐；有助于防止脱水。
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