The nature of the nutritional requirements for obligate parasites in nature is unknown.人们还不知道自然界中专性寄生菌的营养要求的本质.All the photosynthetic bacteria possess the capability in addition to various facultative aerobes and obligat...
生活总是让我们遍体鳞伤，但到后来，那些受伤的地方会变得更坚强。The world breaks everyone, and afterward, many are stronger at the broken places.这些大机构总是随意制定规定，而且说变就变。These large institutions make — and change—the rules to suit themselves.兄弟几个总是要到正午前后才姗姗...