Photothermionic
光热离子的
🗣️ 情景例句
You would be well-advised to book in advance.
你还是提前预订较为稳妥。
Could we see the specifications for the X200?
我们可以看一下X200型的详细规格吗？
George showed me to the guestroom which, he said, was rarely used.
乔治把我领进客房，说这间很少使用。