stack
stack/stæk/ I.n.整齐的一叠(或一堆)：a stack of rice straw稻草垛I’ve got stacks of letters to write.我有好多信要写。［考句］There’s a whole stack of bills waiting to be paid.有一···
stadium
stadium/ˈsteidiəm/n.［c］(pl.stadia /ˈsteidijə/or stadiums)（周围有看台的）露天大型运动场：a baseball stadium棒球运动场；an indoor stadium室内体育馆；the Beijing Worker’s Stad···
staff
staff/stɑ:f/ I.n.1.全体人员，全体职员（pl.动词）：the teaching staff of a school学校的全体教师；a staff member/a member of the staff职员之一The staff are not very happy about the ···
stage
stage/steidʒ/n.［c］1.阶段，时期：in the early (final) stage of development处在发展初(末)期；a critical stage危险期；at the initial stage of a disease在发病初期2.舞台，戏剧：put s···
stagger
stagger/ˈstæɡə/vi.&vt.1.摇晃，蹒跚: He staggered to his feet.他摇摇晃晃地站起来。［考句］The boxer staggered and almost fell when his opponent hit him. (shattered, scattere···
stagnant
stagnant/ˈstæɡnənt/adj. 1.不流动的,停滞的：a stagnant brain迟钝头脑There is a stagnant pool at the botom of the garden.在花坛底部有个死水塘。2.不发展的，不景气的：Due to low in···
stagnate
stagnate/ˈstæɡneit/vt. &vi.(使)停滞不前，(使)不流动；(使)变为污浊：stagnate waters使水不流动The water stagnates in the ditch.水在沟中停滞而变浊。Teaching can easily stagnate···
stain/stainless
stain/stein/ I.n.［c］污点，污迹：an ink stain墨水渍；a blood (mud) stain血(泥)渍；a stain on sb.’s reputation (character)某人名誉(性格)上的污点‖II.vt.玷污，染污，染色：stain one···
stair/staircase
stair/stɛə/n.［c］楼梯(常用pl.): on the stairs在楼梯上；go up/down stairs上(下)楼；a flight/pair of stairs一段楼梯［注］staircase即stairway楼梯staircase/ˈstɛəkeis/n.［c］楼梯：···
