在有条件进行抗逆转录病毒疗法的地方，如果孕妇在怀孕期间HIV阳性的话，可以得到这些药物的治疗。
In areas where antiretroviral therapy is available, a pregnant woman can receive these drugs if she tests HIV positive during pregnancy.
也有一些令人担忧的迹象，最近的免疫接种收益受到侵蚀，甚至被经济和社会条件逆转。
There are also worrying signs that recent immunization gains are being eroded or even reversed by economic and social conditions.
接受一定时期的短日照处理，再移入长日照条件下，会发生花序的逆转现象。
Flower reversion occurred after treated in short day for some time, and then transferred into long-day condition.
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