Tecnetron
[电] 三元半导体放大器
🗣️ 情景例句
It's raining cats and dogs outside.
外面下着倾盆大雨。
Almost everyone is aware of environmental problems in America.
在美国，几乎人人都注意到环境问题。
On Wednesday evening, we went to the Town Hall.
星期三的晚上，我们去了市政厅。