Pbx
[计] 专用小型交换机
🗣️ 情景例句
Can you do me a favor?
你能帮我个忙吗？
The doctor advised me to stay indoors more.
医生劝我要多待在屋子里。
Only the Earth provides ideal conditions, and even here it has taken more than four billion years for plant and animal life to evolve.
只有地球提供理想的条件，而即使在这里，植物和动物的进化也用了40亿年的时间。