Lostpedia has a translation:
Klugh: Mikhail. Mikhail! You know what to do.
Mikhail: We still have another way [out].
Klugh: We cannot risk. You know the conditions.
Mikhail: There is another way.
Klugh: They captured us. We will not give (or let, or betray) [unintelligible].
Klugh: You know what to do. It is an order.
Mikhail: We still have another way!
Klugh (in English): Just do it, Mikhail.
Mikhail: Forgive me. (shoots)