not only ... (but also);  not merely;  as well as;  furthermore;  besides;  moreover
 very;  extremely;  terrible;  horrid;  remarkable;  extraordinary
 long (distance, length);  long (time);  protracted;  prolonged
 to go to and from (a place);  to go back and forth between;  to go to (school, work, etc.);  to attend;  to circulate (e.g. blood, electricity);  to be communicated (e.g. thought)
 work-to-rule;  go-slow strike;  slowdown;  being idle;  slackening;  being truant
 habit (often a bad habit, i.e. vice);  tendency;  peculiarity;  idiosyncrasy;  crease;  wrinkle
 to be resurrected;  to be resuscitated;  to be rehabilitated;  to be recalled (e.g. memories);  to be brought back
 to draw the conclusion that ...;  to conclude
 shut-in;  stay-at-home;  hikikomori;  social withdrawal;  shunning other people
 speaking of ...;  when it comes to ...;  as for ...;  if one were to say ...
 knowing;  (an) acquaintance
 remote (work, device, etc.)
 poor (living);  barely continuing;  just scraping along;  very narrow
 secretly;  in secret;  unseen;  unobserved;  inwardly;  in private
 to send (a thing);  to dispatch;  to take or escort (a person somewhere);  to see off (a person);  to bid farewell (to the departed);  to bury;  to spend (time)
 something like ...;  things like ...;  someone like ...;  the likes of ...
 to differ (from);  to vary;  to not be in the usual condition;  to not match the correct (answer, etc.);  to be different from promised;  isn't it?
 circumstances;  conditions;  situation;  reasons;  state of affairs
 related to;  in relation to;  as far as ... is concerned
 purposely (of something needless, unexpected or seemingly counterproductive, etc.);  daringly (doing something);  not necessarily;  not particularly; (arch.)  definitely not
 doesn't amount to doing (something);  not significant enough to require (something);  unnecessary
 uninhabited island;  desert island
 disaster;  accident;  shipwreck;  distress
 limit;  limits;  degree;  extent;  the end;  the last;  as long as ...
 around the world;  throughout the world
 all members;  all hands;  everyone;  everybody;  whole crew
 to roll up;  to enfold;  to swallow up;  to involve;  to drag into
 novel coronavirus (esp. SARS-CoV-2)
 face-to-face lesson;  face-to-face class
 everything;  all;  the whole;  entirely;  completely;  wholly
 suspension;  stoppage;  discontinuance;  interruption
 reopening;  resumption;  restarting
 hope;  promise;  expectation;  anticipation;  side of a structural member
 to vomit;  to throw up;  to emit;  to send forth;  to give (an opinion);  to make (a comment)
 while;  during;  while;  although;  all;  both
 to bite into;  to sink one's teeth into;  to stick to;  to cling to;  to hold on to
 without sparing time for sleep
 future (usually near);  prospects
 to use (a thing, method, etc.);  to make use of;  to use (a person, animal, puppet, etc.);  to employ;  to use (time, money, etc.);  to spend
 appearing ...;  looking ...;  way to ...;  method of ...ing;  form;  style
 memorization;  memorisation;  learning by heart
 intracerebral;  inside the brain;  (occurring) in the mind;  mental (e.g. image);  imaginary
 to cram;  to stuff;  to jam;  to squeeze;  to compress;  to pack