无锡捞王
be composed of 算是个短语,要熟悉。表示XXX是由XXX组成的。再就是combine指把两个或更多的东西给合并了。举个例子,说A and B are combined into C. A 和B 被合并成了C。而假如换成compose,那就是A is composed of B and C. 即A是由B和C组成的。注意到两个被动句的主语扮演的角色完全反过来的。前者是A和B组成C,而后者则是A由B和C组成。
chocolate宸
30 years ago, scientists came up with the theory that protons and neutrons are composed of three smaller particles.
30年前,科学家们提出了质子和中子是由三种更小的粒子组成的理论。
Water is composed of hydrogen and oxygen.
水由氢气和氧气组成。
Our team is composed of ten experts.
我们小组由10位专家组成。
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