Testbed
[计] 试验台
🗣️ 情景例句
We need a man who knows the ropes.
我们需要位内行人士。
Never say die! Up man, and try.
不要气馁，朋友，振作起来，干！
Every year, several classes visit the factory.
每年都有好几个班去参观这家工厂。