果汁中的柠檬酸会调节口腔的PH值，杀死造成口气的细菌。
The citric acid in the juice alters the pH level in your mouth, killing the bacteria that cause bad breath.
米歇尔和他的同事们在七种鲨鱼里找到了耐抗生素的细菌，这些鲨鱼包括：蓝鲨，柠檬鲨，护士鲨和红拟石首鱼。石首鱼生活在伯利兹、佛罗里达、路易斯安那和马萨诸塞的沿海水域。
Mitchell and colleagues found antibiotic-resistant bacteria in seven species of shark—such as bull sharks, lemon sharks, and nurse sharks—as well as the redfish Sciaenops ocellata.
含编码非特异性酸性磷酸酶基因（phoN）的细菌如柠檬酸杆菌（Citrobacter freudii）等能有效地吸附去除废水中的重金属，但这类微生物对辐射敏感。
Bacteria such as Citrobacter sp. harboring phoN, a gene encoding a nonspecific acid phosphatase, have been reported to precipitate heavy metals efficiently.
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