Security clearance
[法] 忠贞调查
🧩 词语组成解析
🗣️ 情景例句
How much does it cost?
这得花多少钱？
A man becomes learned by asking questions.
要长学问，就得多问；多问则业精。
In the midst of all this movement, the weight and the pen would be still.
重物和笔都却不运动。