1．By then, there will be no global war, no mass starvation (饥饿).
2．Both sides are at a heavy cost in the border armed conflict (冲突)．
3．He dived from the bridge to rescue (救援) the drowning child.
4．I'd like to invite you to join us in assisting (帮助) the elderly people there.
5．She stopped corresponding (与……通信) with him after the death of her mother.
6．All of us have feelings and emotional (情感的) reactions to certain things in life.
7．The key part of using a radioactive (放射性的) battery is that when you harvest the energy.
8．Exploration (探险) can be an end in itself but it also offers the land for other developments.
9．The proposal attempts to deal with what some call the “death valley” of autonomous (自主的) vehicles.
10．They compared how accurately participants (参加者) read those facial expressions using their particular eye movement strategies.
