(practical) experience;  personal experience;  hands-on experience;  first-hand experience
 for the first time;  only after ... is it ...;  only when ... do you ...;  first time;  (one's) first
 fierce battle;  hard-fought battle;  hot contest;  severe fight
 being unfamiliar with a locality;  not knowing one's way around; (lit.) not knowing one's right hand from the left;  being clueless
 to scramble for;  to struggle for;  to contend for;  to fight for
 in any way;  to some extent;  even if only a little
 question (e.g. on a test);  problem;  problem (e.g. societal, political);  question;  question (i.e. doubt);  public discussion
 to refuse;  to reject;  to inform;  to give notice;  to ask leave;  to excuse oneself (from)
 considerably;  not a little;  in no small numbers
 by all means;  by all costs
 number of (large) animals
 to collect;  to gather;  to arrange;  to put in order;  to make uniform;  to make even
 forcing;  compulsion;  coercion;  pushing (to do)
 seems to be;  appears to have;  supposed to be
 to stick through;  to force through;  to spread throughout;  to thoroughly diffuse;  to make a path between two points;  to proceed in a logical manner;  to let pass
 stage;  step;  level;  rank;  order;  stairs
 to step on;  to tread on;  to set foot on (e.g. foreign soil);  to stand on;  to experience;  to undergo;  to follow (rules, principles, etc.)
 confirmation;  verification;  validation;  review;  check;  affirmation
 treatment;  service;  handling (of a machine, tool, etc.);  operation;  treating as;  treating like
 deadline;  closing;  cofferdam;  closed (door, window, etc.)
 just because;  even if;  even though
 to put in;  to let in;  to admit;  to accept;  to accept;  to comply;  to include
 it does not mean that ...;  I don't mean that ...;  it is not the case that
 yes;  yeah;  huh?;  what?;  not;  's
 club activities;  extracurricular activities
 when;  at what time;  how soon;  normal times;  ordinary days
 to stop (an activity);  to cease;  to discontinue;  to cancel;  to abandon;  to give up
 hard to say;  inexpressible;  hesitant to say;  embarrassing;  delicate
 to add (one thing to another);  to add (a few more words, an explanation, etc.)
 estimate (of costs);  budget
 hour;  o'clock;  (specified) time;  when ...;  during ...
 the number of people;  many people;  a large number of people;  (counted as an) adult
 origin;  source;  base;  basis;  cause;  ingredient;  material
 to decide;  to choose;  to clinch (a victory);  to decide (the outcome of a match);  to persist in doing;  to go through with;  to always do
 entering;  setting (of the Sun);  containing;  content;  income;  beginning
 office work;  clerical work;  administration;  business;  affairs
 immediately;  right away;  at once;  instantly
 dealing with;  coping with
 stupid;  meaningless;  worthless;  hopeless (person, situation);  beyond help;  beyond saving
 to pass (of time);  to elapse