self-guided weight-loaded accumulator

例句：

1. 1. The self-guided tour guide was very helpful.
   自助导游非常有帮助。
2. 2. The self-guidedcourse is designed for beginners.
   这个自助课程是为初学者设计的。
3. 3. The self-guided nature walk takes about two hours.
   这个自助自然徒步旅行大约需要两个小时。