spine; line of the backbone; seam down the back (of clothing)
multitasking; multitasking (person); simultaneous (activity); concurrent
muscular pain; myalgia; aching muscles; sore muscles
tracing; trail left in the snow (by mountaineers); following (a trail of footprints); trace (of a matrix)
reaching; attaining; arrival
continuation; persisting; lasting; sustaining; enduring
full use; extensive use; complete utilization
machine; race car; racing motorcycle
calling (someone a thief, coward, etc.); branding (as); denouncing
to do something by choice; to like; to be fond of
acrobatics; acrobatic performance; stunt
machine; mechanism; instrument; appliance; apparatus
domestic animals; livestock; cattle
that is (to say); namely; precisely; exactly; if one does ..., then; in that case
dark; gloomy; somber; depressing
gear; cogwheel; cog (in an organization, company, etc.); cog in the machine
mouth; lips; shape of the mouth; near an entrance; vicinity of an entrance
to become loose; to slacken (e.g. rope); to become less tense; to relax; to slacken (e.g. coldness, supervision); to become lax; to become softer (e.g. ground, facial expression)
to become entangled; to become complicated; to get mixed up; to screw up; to get caught up in
exhausting work; hard work; severe duty
ball; sphere; bead (of sweat, dew, etc.); drop; ball (in sports); pitch (e.g. in baseball); pile (of noodles, etc.)
to extend; to stretch out; to attend; to participate in; to enrol; to enroll
at hand; on hand; way of moving one's arms; skill; money at hand; pocket money
burning; combustion; exerting all strength; making an effort
indescribable; exquisite; inexpressible; indefinable
funny; amusing; strange; odd; wrong; unsuitable
to be connected (to); to be joined together; to connect (of a telephone call, the internet, etc.); to get through; to lead (to an outcome); to bring about (a result); to be lined up (e.g. of cars)
dealing with; coping with
running about; making every effort (to do); busying oneself (with); being busily engaged (in); good offices; efforts
to run through (a crowd, gate, etc.); to sweep through (e.g. of news through a city); to run past (someone) from behind; to overtake
remains; traces; (the sorrow of) parting; end
performance (as opposed to practice); going before an audience or on-air; game; match; high of the season; height (of summer, etc.)
(establishing a) big lead; (winning by a) huge margin; breaking away (from the field)
to meet; to assemble; to congregate
loud shout; excited cheering
to be effective; to be fruitful; to be worthwhile; to be worth; to be rewarded; to pay off