【盲聽情況】

聽第一遍的時候不太懂

聽第二三遍能聽懂80%

【知識點】

to happen, or to develop

unfold

皮帶

leather

UK [?lee?(r)]

a long piece of leather, chain or rope used for holding and controlling a dog（牽狗用的）皮帶，鏈條，繩索

leash

All dogs must be kept on a leash in public places.

在公共場所所有的狗必須用皮帶牽住。

雙體船a fast sailing boat with two hulls

catamaran

US [?k?t?m??r?n]

進水

take on/in water

發(fā)出遇險信號/求救信號

issue distress call

（船只或航空器遇險時用的國際無線電求救信號）an international radio signal used by ships and aircraft needing help when they are in danger

mayday

防空警報

civil defense siren

及時防止了一場災難。

A disaster was narrowly averted.

~ sth

to prevent sth bad or dangerous from happening防止，避免（危險、壞事）

avert

He did his best to avert suspicion.

他盡量避嫌。

定位器信標

locator beacon

US [?bik?n]

飛機場an area of flat ground where military or private planes can take off and land

airfield