And if he would inform us regarding the rainy season, etc. - ואי אשמועינן בימות הגשמים כולי
Summary:
One צריכותא is sufficient; he mentioned both because they were available and would explain the ברייתא had it mentioned ימות החמה and ימות הגשמים.
He is not liable unless he picks it up from its place - לא מיחייב עד דעקר ליה ממקומו
Summary:
Moving reeds through רמא וזקפיה is the accepted manner of carrying them and nevertheless one is פטור since the מלאכה was not done בב"א. However dragging any object or rolling a round (but not a cubed) object מרשות לרשות is חייב.