单词	mainsheet
释义	mainsheet /ˈmeɪnʃiːt / noun A sheet used for controlling and trimming the mainsail of a sailing boat.Most 28s have tiller steering that is easily put out of the way at anchor and the mainsheet attaches aft of the cockpit so as to not interfere with passengers.... I've been passed more than once on the race course by a Laser sailor with a mainsheet clinched firmly in his teeth while I was fiddling to get something positioned just right. He let go the mainsheet - then reached over and released the halyard for the mainsail - which lowered the boom.
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