| 1 | Admittedly, he didn't know that at the time. | |
| 2 | The appeal of small structures is undeniable. | |
| 3 | There' s no denying crude oil sullied Chinese waters. | |
| 4 | There is an undeniable appeal to the seamless merge between the massive mountains and their reflections. | |
| 5 | While oil poses undeniable ecological risks, methane (CH4) could prove daunting as well. |