Answer
The Czech pronunciation of Jaroslav Plašil is ˈjaroslaf ˈplaʃɪl. The ˈ is a caron, which is a diacritic that is used in Czech to indicate a palatalized consonant. The caron is placed over the letter that is being palatalized. In this case, the caron is placed over the letter r. The ʃ is a voiceless postalveolar fricative. It is pronounced like the sh sound in the English word "ship".