buzz;  hum;  shake (with vigor);  shaking
 difference;  variation;  difference
 a-ha-ha (laughing loudly)
 sense of humour (humor);  funny bone
 to fit;  to get into;  to be fit for (a job, etc.);  to be suited for;  to fall into;  to plunge into
 to roll around laughing;  to fold up;  to hold one's sides with laughter
 gradually;  steadily;  slowly;  little by little;  step by step;  by degrees
 no!;  no no!;  no, not at all
 you;  you bastard;  you son of a bitch; (arch.)  you
 to frolic about;  to mess around
 to descend (e.g. a mountain);  to go down;  to alight (e.g. from bus);  to get off;  to step down;  to retire;  to be granted
 to glide;  to slide (e.g. on skis);  to fail (an examination);  to bomb (when telling a joke);  to drop;  to go down
 to fall down;  to drop;  to be omitted;  to be missing;  to decrease;  to sink;  to fail (e.g. exam or class)
 just barely;  only just;  at the very limit;  at the last moment
 catch;  catching;  catch;  shop tout;  puller-in;  catching (in swimming and boating);  catching the water
 all around;  as far as the eye can see
 stimulus;  impetus;  incentive;  encouragement;  motivation;  provocation
 to express (orally);  to put into words;  to say out loud
 in the twinkling of an eye;  in a flash
 pitiful;  pathetic;  painful to look at
 to choose at one's own discretion;  to choose when to do something;  to estimate (the time for something)
 leaving something where it is;  abandoning something
 horizontally;  flat;  across;  crossways;  crosswise
 to be in a hurry;  to be impatient;  to be anxious (to do);  to get a fright;  to panic;  to get flustered
 few decades;  many decades;  several decades
 to sleep;  to die;  to rest (in peace);  to lie idle (e.g. of resources);  to lie unused; (arch.)  to close one's eyes
 severe;  harsh;  hard;  cruel;  rigorous
 deplorable;  regrettable;  disappointing;  vexing;  unfortunate
 to be sad;  to mourn for;  to regret
 how about ...?;  I wonder;  I don't know
 satisfaction;  contentment;  sufficient;  satisfactory;  satisfying (an equation)
 purposely (of something needless, unexpected or seemingly counterproductive, etc.);  daringly (doing something);  not necessarily;  not particularly; (arch.)  definitely not
 objection;  refutation;  rebuttal;  counterargument
 to be amazed;  to be shocked;  to be astonished;  to be astounded;  to be disgusted;  to be exasperated
 decision;  determination;  resolution
 to change places;  to relieve one another;  to replace someone
 to sink;  to go under;  to go down (e.g. sun);  to set;  to feel depressed;  to become subdued
 absorption;  suction;  attraction
 to go against;  to oppose;  to disobey;  to defy
 deep sleep;  sound sleep;  profound sleep