Focuser
聚焦放大镜, 聚焦装置
🗣️ 情景例句
Money is something, not everything, but without money, you cannot do anything in this world.
金钱并不是万能的，但没钱是万万不能的。
Is this a local broadcast?
这是不是当地的广播？
engineers may soon be free to let their imaginations soar without being penalized by expensive failures.
因此，工程技术人员可能很块就可充分发挥他们的想像力，而不会因失败而造成经济上的损失。