【言葉】tributary

Salmon Return to the Thames (TreeHugger)

Now experts have finally declared the Thames clean enough for the reintroduction to begin. The BBC are reporting that 5,000 2cm long young salmon were released into the Thames tributary, Lambourne river, recently. It's estimated that in 5-10 years there should be a healthy population again.

tributary
【名-1】 （川の）支流｛しりゅう｝

【言葉】get one's feet wet

Add AJAX to your site in three easy steps - Lifehacker

If you're interested in AJAX but don't know where to start, this should help get your feet wet.

get one's feet wet
→
〔新しいことを〕始める、手始めにやってみる
【語源】海で泳ぐのを怖がる子供に向かって、とにかく「足だけでもいいから水につけてみなさい」と助言するところから。
（語義は英辞郎より）

【言葉】on the best of terms (with)

freeml の『ちょっとずつ英語読書会』では、Pollyanna (by Eleanor H. Porter)を配信中。

その中から・・・。

I believe he was your deceased sister's husband, but he gave me to understand the families were not on the best of terms. He thought, however, that for your sister's sake you might wish to take the child and bring her up among her own people in the East. Hence I am writing to you.

the families were not on the best of terms
とあり、今ひとつ意味がとれなかったんですが、

on the best of terms with
　→～とごく親密｛しんみつ｝で

という意味になるんですね。語義は、英辞郎より。

【メモ】フリーのオーディオブック

LifeHackerの記事より

Download free audiobooks at LibriVox

http://lifehacker.com/software/audio-books/download-free-audiobooks-at-librivo
x-241977.php

LibriVox
というサイトがあるみたいだ。チェックする。