Telemitron
电子放电管
🗣️ 情景例句
and help a lot of other people.
且对其他很多人有益。
The leopard cannot change its spots.
江山易改，本性难移。
Soon afterwards, the balloon began to descend and it landed near an airfield.
不久，气球开始降落，在一个停机坪附近着了陆。