Why does it say "Gam Hi la'Golah Halechah"?
Rashi: Also [Noa] went to Galus - its grandeur did not stand in front of Nebuchadnetzar.
Radak: Noa Amon, Kush and Egypt - each of these was exiled. Also you will go to Galus like them, for you are no better than them.
Why does it add "ba'Shevi"?
Radak: The matter is repeated to strengthen it.
What is the meaning of "Yadu Goral"?
Radak: The root is Yadad. Its grammatical form is like "Rabu mi'Sa'aros Roshi", "Raku Devarav mi'Shemen" (Tehilim 69:5, 55:22). It means, they cast. The grammarians R. Yehudah and R. Yonah said so.
Radak citing his father: The root is Yadah, like "v'Yadu Even Bi" (Eichah 3:53). Really, there should be two Yud's; the Dagesh is in place of the Yud of the root.
Malbim: Its honored people were taken for slaves based on a lottery.
What is the meaning of "Ruteku va'Zikim"?
Rashi: They were fettered in chains. This is like "Resukos Kesef" (Yeshayah 40:19), "Aseh ha'Ratok" (Yechezkel 7:23). Radak - it would suffice to say Ruteku; va'Zikim is extra explanation, like "Lema'an Betzo'a Batza", "Asheku Oshek" (Yechezkel 22:27, 29), "u'Ma'alah Ma'al" (Vayikra 5:21), "va'Yatzam David Tzom" (Shmuel II, 12:16) and similar verses.