重要
master
🇬🇧/ˈmɑːstə(r)/ 🇺🇸/ˈmæstər/📚 5280 50 4四级六级考研雅思中考高考A servant's master is the man that he or she works for. 主人
noun [集合/集体]雇主，主子；主宰者，控制者；大师，能手；硕士；原版，母带；男教师；（动物的）主人；少爷；（英国）校长，院长；船长；著名画家；主控机件；国业公会主管，共济会地方分会会长；最高法院官员；<苏格兰>（子爵或男爵的）长子
If you say that someone is a master of a particular activity, you mean that they are extremely skilled at it.
专家
verb [vt. 及物动词]精通，掌握；控制，掌控；制作…母版
If you master something, you learn how to do it properly or you succeed in understanding it completely.
掌握• Duff soon mastered the skills of radio production. 达夫很快掌握了广播节目制作的技能。
adjective [原级]熟练的，精通的；最重要的，主要的；原版的
A master copy of something, such as a film or a tape recording, is an original copy that can be used to produce other copies.
母带的
单词造句: