to open;  to undo;  to bloom;  to unfold;  to open (for business, e.g. in the morning);  to be wide (gap, etc.);  to widen
 noon;  midday;  daytime;  lunch
 just after a holiday break;  the first day after the holidays
 ancient writing (i.e. Edo-period or older);  classical literature;  ancient Chinese character (pre-Qin period)
 lesson;  class work;  teaching;  instruction
 preparation;  arrangements;  getting ready;  provision;  setup;  reserving
 to start;  to begin;  to start up (a business, society, etc.);  to open (e.g. a store);  to start ...;  to begin to ...
 just (e.g. "just wait here");  come now;  tolerably;  passably;  well...;  I think...
 serious;  honest;  sober;  grave;  earnest;  steady
 you;  buddy;  monarch;  ruler;  he;  she
 sudden;  abrupt;  urgent;  pressing;  steep;  sharp;  rapid
 to address (someone);  to accost a person;  to talk (to someone);  to begin to talk;  to start a conversation
 senior high school;  high school
 April;  fourth month in the lunar calendar
 (school) class change;  class shuffle;  rearrangement of which students are in which teacher's class
 still;  as yet;  (not) yet;  more;  (more) still;  at least
 awkward;  clumsy;  stiff;  crude;  unrefined;  constrained
 what's the matter?;  what's wrong?;  what happened (to) ...?;  what have you done (with) ...?;  where is ...?
 bad;  poor;  poor (quality);  inferior;  evil;  sinful;  ugly
 classic (work, esp. book);  the classics
 by no means;  never!;  something unexpected;  emergency; (arch.)  currently; (arch.)  for the time being
 ah!;  oh!;  yes;  indeed;  aah;  gah
 I got it;  I see;  I now know;  So that's the reason
 to understand;  to make out
 to do;  to undertake;  to send;  to dispatch;  to put;  to move;  to give (esp. to someone of equal or lower status)
 hey;  you;  hey;  hey;  hold on;  yo
 to lend;  to loan;  to rent out;  to hire out
 oh!;  good heavens!;  ugh!;  oh no!;  ah!;  the penny drops!
 being settled quickly;  reaching a quick conclusion;  no need to say any more;  no problem
 to be saved;  to be rescued;  to escape harm;  to be spared damage;  to be helped;  to be saved trouble
 to miss (doing);  to fail (to do)
 invincible;  unrivaled;  unrivalled;  matchless;  unbeatable;  undefeatable
 don't;  do;  hey;  listen;  now, ...;  well, ...
 next (to);  adjoining;  adjacent;  house next door;  neighbouring house;  next-door neighbour
 to attend on;  to wait on;  to accompany;  to escort;  to chaperone
 second-year student;  biennial
 same;  identical;  equal;  anyway;  anyhow;  in either case
 distinction;  difference;  separate;  different;  exception;  exclusion
 to stand up;  to put up;  to thrust into;  to bury into;  to make (a noise);  to start (a rumour);  to make
 tradition;  legend;  folklore
 to teach;  to instruct;  to tell;  to inform;  to preach
 somehow;  for some reason;  without knowing why