least [list] 词频1

adj. 最小的;最少的（ little的最高级）;最不重要的，地位最低的; adv. 最少，最小; n. 最小;最少量;

"We need at least 24 hours' notice of cancellation."

近义：lowest, lowliest, measly, merest, minimal, minimum 反义：maximal, meridian, top, upmost, uppermost, greatest

roof [ruf] 词频1

n. 屋顶，房屋;最高部，顶部;最高限度;口腔顶部; vt. 给…盖顶;覆盖;保护，庇护;

"The roof collapsed under the weight of snow."

近义：cover, housetop, roofing, rooftop, top, protection 反义：unroof

over ['ovɚ] 词频1

prep. （表示方向）越过;（部份或全部覆盖）在…上面;由于;（表示论及）关于; adv. 结束;再;（倒）下;从一边至另一边; adj. 过去的;外面的;在上的;上级的; n. 额外;剩余;剩余（或多余）的量;剩余物; int. [电信学]报文完，请回复！; vt. 走过，跳过;[美国方言]从…恢复过来;

"The government did an about-turn over nuclear energy."

近义：above, on, up, regarding, relating, respecting 反义：under, below, beneath

head [hed] 词频1 词根: /hi:/

n. 上端;头脑;头部;首脑，首长; vt. 用头顶;前进;作为…的首领;站在…的前头; vi. 朝…行进;出发;向…方向移动;船驶往; adj. 头的;在前头的;首要的;在顶端的;

💡 他（he) 头大做了帽子 广告 网友：difficult 补充：

"They have appointed a new head teacher at my son's school."

近义：lead, manage, skipper, command, captain, conduct