two directions;  both directions;  two-way;  bidirectional
 sharp (blade);  pointed;  sharp (pain);  stabbing;  perceptive;  keen
 scolding;  rebuke;  reprimand;  fierce encouragement;  exhorting
 why?;  what for?;  how?;  by what means?
 speaking of ...;  when it comes to ...;  as for ...;  if one were to say ...
 obvious;  clear;  plain;  evident;  apparent;  explicit
 reaffirmation;  reconfirmation;  revalidation
 no more than;  just;  only;  mere;  goes no further than
 to require much effort;  to be hard to do;  to be bone-breakingly hard
 objection;  refutation;  rebuttal;  counterargument
 coincidence;  agreement;  conformity;  consistency;  cooperation
 oversight;  omission;  something overlooked;  thing left unnoticed
 to perceive;  to understand
 one-by-one;  separately;  in detail
 wrong;  not good;  hopeless;  past hope;  must not do
 to have a catch;  to have an ulterior motive;  to be more (to something)
 opposite side;  bottom;  rear;  back;  lining;  inside;  in the shadows
 somehow or other;  for some reason or another;  without knowing why
 to close one's eyes;  to lower one's eyelids;  to shut one's eyes;  to die;  to breathe one's last
 careful;  cautious;  prudent;  discreet;  deliberate
 regarding;  in;  to;  towards;  with regards to
 how should I put it?;  what shall I say?;  well, you know;  like
 frantic;  frenetic;  inevitable death;  brinkmate (inevitable checkmate)
 serious;  honest;  sober;  grave;  earnest;  steady
 isolation;  cut off;  blockade;  quarantine;  interception;  deprivation
 (with a) start;  fright;  alarm
 to harden;  to solidify;  to become firm;  to become certain;  to gather (together);  to assemble
 calm;  serenity;  tranquillity;  tranquility
 towards;  against;  regarding;  in contrast with
 to shut;  to close;  to block (a street, entrance, etc.);  to shut in (with snow, ice, etc.);  to shut off;  to consume (with negative feelings)
 hardly any;  almost nonexistent;  very little
 to come into contact with;  to touch (each other);  to have a brush with
 each time;  every time;  whenever (something happens);  on the occasion of
 to exude (e.g. sweat);  to ooze;  to seep out;  to reveal itself (of emotions, etc.)
 joy;  delight;  rapture;  pleasure;  gratification;  rejoicing
 to be conspicuous;  to stand out