专注：
be single-minded about/in sth (single-mindedly; single-mindedness) do sth with single-minded determination /(focus on sth) the single-minded pursuit of sth ( dreams/goals/happiness)
be engrossed in doing sth == sth engross sb
become/be immersed in sth ===sb immerse oneself in sth
deeply focus/concentrate on doing sth == concentrate/focus sb's mind/attention on sth == do sth with/in concentration power of concentration attention/concentration span remain/stay focused on sth
be involved attentively in (doing) sth
be undistracted by sth (phones; friends)
be attentive ---listen attentively to sth ---attentively; attentiveness
分心：
sth distract sb/(sb's attention) from sth be distracted by sth get distracted sth be distracting drive sb to distraction 让人心烦意乱，让人恼火
divert sb's attention (away) from sth == divert the attention of sb from sth
get sidetracked === sidetrack sb from sth ---- avoid being sidetracked by sth
a complete distraction ---noise-related distraction---the enemy of focus
走神啦！：
put sb off zone out==be zoned out ==tun out === be woolgathering
half-listen find sb's mind/attention/thought straying/ wandering
mind wander my mind kept wandering from/(back to) sth
sb's mind is elsewhere. have a little lapse of concentration
absence of mind ==be absent from mind ==be absent-minded to do sth == get absent-minded ==do sth absently/casually
be abstracted -----abstractedly ---abstract sb's mind/attention from sth
