Veja alguns exemplos:
1)While she didn´t have time,they insisted on asking her to give an interview.(Apesar de)
2)He is quite confident,while his brother is very insecure.(Ao passo que)
3)Unlike her mother,she doesn´t study much.(Diferente da mãe dela,ela não estuda muito.)
4)He says hello to everyone in contrast to his brother.(Diferente de)
All the best!