Test specimen
[化] 试件
🧩 词语组成解析
🗣️ 情景例句
Many shopping malls and supermarkets can deliver goods straight to your door.
许多购物中心和超市提供免费送货上门服务。
Step after step the ladder is ascended.
按部就班，循序渐进。
You just don't consider anyone but yourself.
你除了自己外从不为别人考虑。