1)
What is "Socherim"?
1.
Rashi: It is as if it is written with a Sin - they hired counselors to stop the work.
2)
What is the span of "Kol Yemei Koresh... v'Ad Malchus Daryavesh"?
1.
Rashi: This includes also Malchus Achashverosh after Koresh, until the second year of Daryavesh after him. The work was Batel this entire time.
