turn back 怎么造句？
双谓语又是什么？

turn back
v.使停止往前,往回走,翻回到,重新提到,折转,挡住

She reacted to the insult by turning her back on him.
她受他侮辱之后就不再理睬他了.
He turned his back to the wall.
他转过身去背对着墙.
The teacher got a raspberry as she turned her back.
该教师转过身去时有人用舌与唇发出嘲笑她的声音.
The nurse turned the old man over to wash his back.
护士给老人翻个身擦洗后背.
The car turned round and went back again.
小汽车掉转头又回去了。
The nurse turn the old man over to wash his back.
护士给老人翻个身擦洗後背。
We turn off the mina road a few miles back.
我们离开大道好几英里了。

【双谓语结构】
主语＋实义动词＋形容词（或名词），人们将它称为双谓语结构（也有人认为这是主语补语结构）。在这种结构中，第一部分的实义动词，说明主语的行为动作，通常是不及物动词；第二部分说明主语在进行这一动作时的特征、身份、状态，其作用相当于表语（或状语）。这类句子主要出现在描绘性的文字中，在日常口语里用得很少。
例如：
一、主语＋实义动词＋形容词（或过去分词）
1. Mr. Smith lay ill in bed. 斯密斯先生卧病在床。
二、主语＋实义动词＋名词
2. He died a martyr to the cause of the revolution.
他为革命事业牺牲了。