super express (very rapid transportation, particularly of trains)

tightness, rigidity, uncomfortableness / narrowness / illiberality, oppressiveness, uncomfortableness

suction; absorption; assimilation / merger

globe (model of Earth)

a classmate (student of the same class) / a schoolmate who attends school in the same year

consecutive days off

rescue; relief; aid

class (in school)

a sudden change in the state of things resulting in a conclusion or resolution: all at once, all of a sudden

change all of a sudden, happen all at once