How to Use "arduous" with Example Sentences

1. Second , clinical trials are arduous .
2. Finding that special someone can be both an arduous and lengthy task .
3. Yet mastering these arduous skills is at the very essence of achievement .
4. Their desperate journey over the floes must surely rank as one of the most miserable and arduous polar slogs ever attempted .
5. Equally investors could declare this a breach of contract and sue for damages , but this would be a lengthy and arduous process .