There Are No Politics on the International Space Station, with Astronaut Ron Garan
https://www.youtube.com/watch?v=RGPHRwmS8H4 0:31 they've eliminated most of the what we call the low-hanging fruit. この脱線事故でありふれた原因と思われるものはすでに精査を終えている。
NTSB: Amtrak engineer wasn't calling or texting
参考リンク
http://bridge-english.blogspot.jp/2010/02/blog-post_13.html トカゲの尻尾きりを英語でなんと言うか?
練習問題解答
a-1815 the low-hanging fruit
b-3133 the low-hanging fruit
b-3275 the lowest-hanging fruit
b-4791 a low-hanging fruit