behind the surface; the underlying mechanism or system
表面の背後; 基本的なメカニズムやシステム (hyoumen no haigo; kihonteki na mekanizumu ya shisutemu)
"Developers love to see what’s under the hood of a new app."
"開発者たちは新しいアプリのアンダー ザ フッドを見ているのが好きです。" (kaihatsusha-tachi wa atarashī apuri no **andā za fudd** o mite iru no ga suki desu)
performing very well; full of energy and success
thankful for something for a long time
a brilliant and creative idea or action
in a risky or dangerous situation
to be at the forefront of an action or movement
a small indication of what the future might be like
