One of those
habits is smoking, which scientists said is the biggest determining factor in a
person's lifespan. 请问老师句中scientists
said理解为插入语,还是理解为从句的主语+谓语,然后which指代smoking作宾语从句的主语?谢谢老师
学生反复查看了柯林斯on的42条用法,朗文的49条用法,感觉没有一条释义可解释以下句子或结构中on的用法。 一,An honorary degree was conferred on him. 二 ,congratulate sb on sth 三,Troops advanced on the rebel stronghold.