A complex sentence is a group of words which expresses two or more unified thoughts, one of which is the main or principal thought dependent on it one or more subordinate thoughts.
A complex sentence is a group of words which expresses two or more unified thoughts, one of which is the main or principal thought dependent on it one or more subordinate thoughts.
不多余,不能删! 删掉后意思正好反了:
the main or principal thought dependent one or more subordinate thoughts:主句的意思依附于从句的意思(误)
我加上逗号清楚了(应该加逗号停顿): A complex sentence is a group of words which expresses two or more unified thoughts, one of which is the main or principal thought, dependent on it (is) one or more subordinate thoughts. it 指代前面的 the main or principal thought, 后面的部分是独立主格结构,原本是系表结构(倒装),我用(is)暗示。