Passive detection
[电] 无源侦检
🧩 词语组成解析
🗣️ 情景例句
She's moving up the ranks one step at a time.
他一步一步的向上爬。
Be slow in choosing a friend; slower in changing.
选择朋友要审慎，摒弃更要审又慎。
In return for this, the beggar stood on his head and sang songs.
作为回报，那乞丐头顶地倒立起来，嘴里还唱着歌。