By, Laura Maxwell, Glasgow

媒體英語(yǔ)會(huì)帶大家一起學(xué)習(xí)BBC撰稿人在報(bào)道世界大事時(shí)常用到的單詞和短語(yǔ)。

Background: 兩只河貍幼仔在蘇格蘭的野外出生。這是自從去年嘗試把這種動(dòng)物重新引入到英國(guó)后，首次出生的河貍幼仔。專家說這是一個(gè)良好的兆頭。

Wild beavers are nocturnal and elusive, so telling if the females are pregnant can be tricky.

Now, after weeks of speculation, staff and volunteers in the Knapdale Forest in Argyll have been rewarded with the sight of not one, but two newborns.

The kits, which have been born to separate family groups, are thought to be around eight-weeks old, and are about the size of a large guinea pig.

They've been seen out with their families, learning how to forage.

Conservationists are hoping there'll be more new arrivals this year, so they can study how the reintroduced population establishes itself naturally in the wild.