Another factor may be the mosquito’s search for an accessible vein near the skin surface, much like that of a nurse trying multiple sites to take a blood sample.
抑或是蚊子试图通过多点测试寻找一个接近皮肤的血管，正如护士采血样时多试几个地方一样。
Another factor may be the mosquito’s search for an accessible vein near the skin surface, much like that of a nurse trying multiple sites to take a blood sample.
抑或是蚊子试图通过多点测试寻找一个接近皮肤的血管，正如护士采血样时多试几个地方一样。
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