difficult to understand;  unintelligible;  abstruse
 study;  scholarship;  learning;  discipline;  branch of learning;  (a) science
 sensitivity;  sensitiveness;  sense (of ...)
 and;  and then;  thus;  and now;  and finally
 how long;  how much;  to what extent
 preparation;  provision;  guarding
 indicates direct object of action;  indicates subject of causative expression;  indicates an area traversed;  indicates time (period) over which action takes place;  indicates point of departure or separation of action;  indicates object of desire, like, hate, etc.
 riddle;  puzzle;  enigma;  enigmatic;  mysterious
 to be solved;  to be resolved;  to loosen;  to come untied;  to be removed (of restrictions);  to be lifted (e.g. a ban)
 please (give me);  please (do for me)
 everyone;  anyone;  no one;  nobody
 always;  without exception;  necessarily;  certainly;  without fail;  positively
 makings (of);  aptitude;  talent;  nature;  character;  temperament
 to hold (in one's hand);  to take;  to possess;  to have;  to maintain;  to keep;  to last
 behind;  rear;  after;  later;  remainder;  the rest;  more (e.g. five more minutes)
 small quantity;  little;  little while;  short distance
 to have (the) courage (to);  to be courageous
 surely;  undoubtedly;  sternly;  severely;  having no slack;  rigid
 to come true (of a wish, prayer, etc.);  to be realized;  to suit (e.g. a purpose);  to meet (wishes, ideals, etc.);  to match (implies competition);  to rival
 the expectation is that ...;  the reason is that ...;  the fact is that ...;  the explanation is that ...;  it is that ...
 to laugh;  to smile;  to sneer;  to ridicule;  to be dumbfounded;  to be flabbergasted
 together (with);  at the same time;  in a lump
 laugh;  laughter;  smile;  sneer;  sex aids (e.g. dildos, pornographic books, erotic woodblock prints, etc.)
 to talk about;  to speak of;  to recite;  to chant;  to indicate;  to show
 to nod;  to bow one's head in assent;  to agree
 dull;  uninteresting;  insignificant;  unimportant;  absurd;  foolish
 to compromise;  to meet halfway;  to step up to;  to walk up to;  to approach
 thing;  matter;  incident;  occurrence;  circumstances;  situation;  work
 important;  significant;  precious;  valuable;  careful
 sometime;  someday;  one day;  some time or other;  the other day;  in due course
 things like;  something like;  someone like;  such a thing as;  (the fact) that;  to think that
 promise;  agreement;  convention;  rule;  destiny;  fate
 to give;  to let (one) have;  to give;  to do for one;  to take the trouble to do;  to do to someone's disadvantage
 truth;  reality;  proper;  right;  genuine;  authentic
 to take out;  to get out;  to put out;  to reveal;  to submit (e.g. thesis);  to turn in;  to publish
 scary;  frightening;  eerie;  dreadful
 terrible;  dreadful;  amazing (e.g. of strength);  great (e.g. of skills);  to a great extent;  vast (in numbers)
 don't you think?;  indicates question
 that is to say;  that is;  in short;  in brief;  clogging;  obstruction;  shrinkage
 man;  male;  masculine gender
 to;  for;  from the standpoint of;  as far as ... is concerned