Fericon
费里康压电陶瓷光阀
🗣️ 情景例句
it's going to be too late when I do remember.
等我想起来时已经太晚了。
It's not gonna work.
行不通的啦！
But we do not need to send men down to get the oil out, as we must with other mineral deposits.
但是，我们不必像开采其他矿藏那样，把人送到地下去把石油取出。