61.gourmet
美 [?ɡ?rme?]
noun
美食家；讲究饮食的人；美酒美食品尝家
a person who knows a lot about good food and wines and who enjoys choosing, eating and drinking them
62.infinitesimal
美 [??nf?n??tes?ml]
adj.
极小的;微量的
n.
无限小;极微量;极小量
63.hypothesis
美 [ha??pɑ?θ?s?s]
noun
[C] 有少量事实依据但未被证实的）假说，假设
an idea or explanation of sth that is based on a few known facts but that has not yet been proved to be true or correct
[U] （凭空的）猜想，猜测
guesses and ideas that are not based on certain knowledge
64.vertebrate
美 [?v??rt?br?t]
adj.有脊椎的，脊椎动物的
n.脊椎动物(包括所有哺乳动物、鸟类、鱼类、爬行动物和两栖动物)
65.meridian
noun
子午线；经线
one of the lines that is drawn from the North Pole to the South Pole on a map of the world
世界地图上从北极到南极的一条线
66.petition
美 [p??t??n]
noun
~ (against/for sth)
请愿书
a written document signed by a large number of people that asks sb in a position of authority to do or change sth
(law 律) 申诉书；申请书
an official document asking a court to take a particular course of action
要求法院采取特定行动的官方文件
(formal) 祈祷；祈求
a formal prayer to God or request to sb in authority
verb
~ for/against sth | ~ sb (for sth)
祈求；请求；请愿
to make a formal request to sb in authority, especially by sending them a petition
~ (sb) (for sth)
（向法庭）请求，申请
to formally ask for sth in court
67.refute
verb
驳斥；批驳
to prove that sth is wrong
反驳；否认
to say that sth is not true or fair
从严格意义上来解释，“驳斥”一词的意思是指正方通过证据指出反方的论证是错误的或不正确的来击败反方
驳斥，指激烈反驳别人的言论观点。辩论并非在真空里进行，而是要面对反方。辩论者总是面临着击败对手所提出的反对理由的必要。这一击败反对理由的过程被称之为驳斥。
68.vestige
美 [?vest?d?]
noun
残留部分；遗迹
a small part of sth that still exists after the rest of it has stopped existing
（通常用于否定句）丝毫，一点儿
usually used in negative sentences, to say that not even a small amount of sth exists
There's not a vestige of truth in the rumour.
这个谣传毫无真实可言。
69.vessel
美 [?vesl]
noun
(formal) 大船；轮船
a large ship or boat
(old use or technical 术语) （盛液体的）容器，器皿
a container used for holding liquids, such as a bowl, cup, etc.
（人或动物的）血管，脉管；（植物的）导管
a tube that carries blood through the body of a person or an animal, or liquid through the parts of a plant
70.venue
noun
a place where people meet for an organized event, for example a concert, sporting event or conference
聚会地点(如音乐厅、体育比赛场馆、会场) ，也指犯罪地点；发生地点；（英格兰律）审判地（指郡或区）