oddball
n. a person who behaves in a strange or an unusual way

operator
n. a person who works on a telephone switchboard 电话接线员

optimistic
adj. hopeful about the future, believing that things will happen in the best way 乐观的

outer
adj. of the outside 外面的；～ space: 外屋空间

overhead
n. , adv. over the head

persistently
adv. continuing to do or say something although other people warn you not to 固执地；坚持地

plug
v. , n. 插；插座

polish
v. to make smooth and shiny by continual rubbing 擦亮

porch
n. a doorway or an entrance to a house, covered with a roof 门廊

portable
adj. easily carried or moved 手提式的

precisely
adv. exactly

quietness
n. silence

react
v. 反应

reaction
n. the act of reacting

reluctantly
adv. unwillingly

residential
adj. mainly of the part of the town or street where there are private houses and very few offices or factories 住宅的

roar
n. a continuous loud noise made by a machine or a strong wind

rooftop
n. the top of the roof

rub
v. 摩擦

screw
v. 拧紧

sense
n. a meaning 意义

sidewalk
n. pavement 人行道

space
n. 空间；太空

speechless
adj. unable to speak because of deep feeling 由于某种原因而说不出话的

spot
n. a small and round mark 点；斑点 black ～s （太阳）黑子

stool
n. a seat without a back, usually for one person

stove
n. 火炉

stuff
n. things

thunder
n. a loud noise following lightning 雷鸣

tone
n. 语调

tremendous
adj. very big or powerful 巨大的（数字、爆炸声等）

typical
adj. 典型的

upwards
adv. going up 向上

weird
adj. strange; difficult to explain, usually because one has not seen or experienced before

wet
v. to make wet

whirl
v. to turn around very quickly