Most types destroy muscle and surrounding tissue. Bacteria may directly infect muscle (usually after injury) or produce substances toxic to it.一
大多数肌炎对罹病肌肉及周围组织具有破坏性。细菌可能直接破坏肌肉(通常在受伤之后)或对其产生有毒物质。
Rye dough leavening is achieved by a sour dough formulation which includes lactic and acetic acid bacteria.
黑麦面团的发酵可通过使用乳酸菌和乙酸菌来酸化面团来完成。
Simple organisms such as bacteria and alga have been found as fossils in rocks more than 3000 million years old
简单的生物，如细菌和藻类，它们的化石已在三十多亿年的岩石中发现。
