Gra
abbr. （美）政府科学研究机构联合会（Governmental Research Association）
🗣️ 情景例句
I appreciate it very much.
我非常感激你的帮助。
It's an incredible story to them.
对他们来说，那是无法相信的传闻。
There is so much variety that you never have to make do with second best.
物品种繁多，从来不必用二等品来凑合。