打ちかかる

(1)enter upon an activity or enterprise

(2)活動または挑戦に乗り出す

(3)get off the ground; "Who started this company?"; "We embarked on an exciting enterprise"; "I start my day with a good breakfast"; "We began the new semester"; "The afternoon session begins at 4 PM"; "The blood shed started when the partisans launched a surprise attack"

(4)順調にスタートする

(1)