Technological development
[经] 工艺发展, 技术开发
🧩 词语组成解析
🗣️ 情景例句
I guess I didn't have one, fortunately.
但我想我并没有，因为我的幸运的。
You were lucky to find it.
你的运气真好。
Only good scouting is likely to preserve the freedoms so dear to the heart of the eternal Boy Scout.
只有优良的童子军活动才能保持不朽的童子军所衷心热爱的各项自由。