Distinguish above all so bacterium of cause of disease is bacterium of positive of change orchid family name or electronegative bacterium choosing antibiotic respect meaning great.
所以首先区分病原菌是革兰氏阳性菌还是阴性菌，在选择抗生素方面意义重大。
Commonly this family is called the orchid family: scientifically, the family is called Orchidaceae.
一般称为兰花花系，科学上称为兰花科。
The family has the blue flower fragrance This year, my family's orchid opened.
妙手帮我用英语翻译一下这篇作文，家有兰花香 本年，我家的兰花又开了。
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