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
Malta wins the race for most slothful country, with 72% of adults getting too little exercise.Swaziland and Saudi Arabia slouch in close behind, with 69%. 这里slouch in close behind是什么用法?