️这个世界上每一种选择都有辛苦，都会付出代价，如果现在就觉得辛苦，那不如早点洗洗睡吧~
It’s a theory to which many economists subscribe, but in practice it often leaves railroads in the position of determining which companies will flourish and which will fail.
单词都认识，但是反应不出来是什么原因呢？
It’s a theory to /which many economists subscribe, /but in practice it often leaves railroads in the position of determining /which companies will flourish and which will fail.
4句
做什么成份：
补充说明
逗号
leaves 使得
✅ subscribe /səbˈskraɪb/ v. 同意，赞成；订购，认购
✅ theory /ˈθɪəri/ n. 理论，原理
✅ economist /ɪˈkɒnəmɪst/ n. 经济学家
✅ subscribe /səbˈskraɪb/ v. 同意，赞成；订购，认购
✅ in practice 在实践中；实际上，事实上
✅ in the position of... 处在……位置上
✅ determine /dɪˈtɜːmɪn/ v. 决定，下定决心；确定
✅ flourish/ˈflʌrɪʃ/ v. 繁荣，兴旺