bell signalling that work, class, etc. will formally begin shortly; first bell; warning bell
to sound; to ring; to resound; to echo; to roar; to rumble
(opening a door) with a clatter; noisily; (falling) with a clatter; with a crash; (changing) completely; totally
nothing but; none other than
all members; all hands; everyone; everybody; whole crew
at leisure; in a relaxed manner; in a carefree manner; to relax; to take it easy; to chill
to float; to set afloat; to show on one's face (smile, sadness, etc.); to recall; to call to mind
year; counter for years (e.g. of an era), grades (e.g. school); period of an apprentice's contract (usu. ten years)
promotion (school, military, etc.)
for the first time; only after ... is it ...; only when ... do you ...; first time; (one's) first
(school) class change; class shuffle; rearrangement of which students are in which teacher's class
temporary absence from school
Golden Week; string of public holidays in late April-early May
previous day; day before; eve; prior day; preceding day
although I say; although one might say; although called
not serious; frivolous; insincere; unsteady
pupil; student; schoolchild
absence due to illness; sick leave
to be late; to be delayed; to fall behind (in a race, one's studies, etc.); to lag behind; to be bereaved of; to be preceded by (someone) in death
posture; pose; position; attitude; approach; stance
serious; earnest; sober; honest; sincere
class; heading; group; category
year; age; years; past one's prime; old age
to pass; to elapse; to pass through; to go through; to experience; to go through
(feeling of) indebtedness; feeling obliged
classroom; lecture room; department (in a university); class; lessons; school (for a particular discipline)
step; stride; counter for steps
seat; location (of a gathering, etc.); place; position; post
sudden; abrupt; urgent; pressing; steep; sharp; rapid
at last; finally; barely; narrowly; just
carefree; free from worry
please; if you would; somehow or other; one way or another; whether (or not); if
such; this sort of; like this
extreme foolishness; grave stupidity; big fool; damn idiot; utter fool
important person; influential figure; big shot; big thing; big one; big game
which way; which direction; which one (esp. of two alternatives); who
the latter; the second; successor; descendant
sure; certain; reliable; trustworthy; If I'm not mistaken; If I remember correctly
silence (not speaking); muteness
empty seat; unoccupied seat; vacancy; vacant post