Yabancı dillerle yabancı olursan, yabancının sessizliğini asla anlayamazsın.
- Being unfamiliar with foreign languages, you'll never be able to understand the foreigner's silence.
Telefondaki ses bana yabancıydı.
- The voice on the phone was unfamiliar to me.
... to get familiar with the space industry. ...
... Some of the species of grass that we are most familiar with ...