adj (1)平(光)滑的(having an even surface，like glass or silk;not rough)：a～road 平坦的路;～skin 光滑的皮肤;a～sea 风平浪静的海面;a～piece (sheet) of wood/ice 一块平整的木头/光滑的冰;be～to the touch 手感平滑的;～polished walnut 经抛光后平滑的胡桃木;as～as silk/satin/a baby's bottom/velvet 光滑如丝/如缎/如婴儿皮肤/如鹅绒;〖同〗even，flat，level，silky;〖反〗rough，uneven，irregular;

(2)平稳的(having an even or gentle motion)：a～ride/landing/passage 平稳的行驶/降落/通过;～driving/breathing 平稳的驾驶/呼吸;have a～flight 平稳航行;bring a car to a～stop 平稳地把车停住;

(3)顺利的(free from difficulties，problems，etc)：a～day at the office 办公室顺顺当当的一天;as a～journey as possible 极为顺利的旅行;have a～passage through Parliament 在议会顺利通过;The changeover in management was very～. 管理上的交接进行得相当顺利。〖同〗harmonious，easy，peaceful;〖反〗disorderly，difficult，troublesome;

(4)柔(醇)和的(not bitter or sour;tasting pleasant)：a～sherry/whiskey/pipe tobacco/cigar 味道醇美的雪利酒/威士忌/香醇的烟丝/柔和的雪茄烟;a～voice (fig)柔和的嗓音;〖同〗mild;〖反〗sharp;

(5)搅拌均匀的((of a liquid mixture) without lumps;evenly mixed or beaten)：mix the ingredients to a～paste 把原料搅拌成细腻的浆糊;～custard 搅拌均匀的牛奶糊;She stirred the sauce until (it was)～. 她把调味汁搅拌均匀。

(6)奉承的，圆滑的((of men) overpraising，polite and agreeable (but perhaps insincere))(常derog)：a～manner/face/talker/salesman 一副奉承的样子/奉承的表情/说话圆滑的人/殷勤的推销员;〖同〗flattering;〖反〗rough，unpolished;

in smooth waters 进展顺利，一帆风顺：Everything seems to be in～waters. 一切似乎很顺利。

→′smoothie，smoothy (infml，derog) n 奉承而随和的人;′smoothly adv 平坦地;顺利地;′smoothness n 光(平)滑;顺利;͵smooth-′tongued，͵smooth-′spoken adj 油嘴滑舌的;

vt 使平坦(平稳，顺利)(make smooth)[T+n，T+n+prep，T+n+adv (away/back/down/out)]：～the plaster/ones's hair/one's dress (with an iron) 抹平灰泥/捋顺头发(用熨斗)烫平自己的衣服;～the way to peace/for sb 为和平/某人铺平道路;～the anger of the mob (fig)平息那伙人的愤怒;～back one's hair from his forehead 把头发由前向后捋平;～down one's hair/one's dress 捋平自己的头发/整平衣服;～wood down with sandpaper 用砂纸把木头打磨光滑;～out a tablecloth/a sheet 铺平台布/床单;〖同〗flatten，pave，open;〖反〗roughen;

smooth away (v adv)克服，消除(vt)：The chairman has made efforts to～away any difficulties that might prevent our plan from being followed. 主席皆尽全力去克服那些可能妨碍我们计划实施的困难。

smooth over (v adv)平息，缓和(vt)：The teacher～ed over the quarrel/the differences between the two boys. 老师平息了两个男生的争吵/争执。

【辨异】smooth 与easy、effortless、simple 和light的区别见EASY。