战争爆发时，许多家庭被迫抛弃家园逃往邻国。

Many families had to ___abandon their homes and flee to neighboring countries when the war broke out.

由于缺乏资金，他们不得不放弃了这个计划。

They had to ___abandon the plan due to lack of funding.

由于缺乏资金，他们不得不放弃这个研究项目。

They had to ___abandon the research project due to lack of funding.

音乐响起，人们尽情舞动，完全沉浸在欢乐中。

When the music started, people ___abandoned themselves to dancing and joy.