hadrdmal

例句：

1. 1. Ihad a hard time understanding the concept ofquantum mechanics.
   我很难理解量子力学的概念。
2. 2.The company had to lay off its employeesdue to financial difficulties.
   由于财务困难，公司不得不裁员。
3. 3. The government had to intervene in the political crisis to restore stability.
   政府不得不介入政治危机以恢复稳定。