‘黑板’这个词是通过‘黑’和‘板’复合而成的。

The word 'blackboard' is formed by ___compounding 'black' and 'board'.

长期投资的收益会因复利效应而显著增加。

Investment returns grow significantly due to ___compounding over long periods.

恶劣的天气让交通堵塞问题更加严重了。

The bad weather is ___compounding the traffic congestion problem.