Sdma
空分多址
🗣️ 情景例句
But with only one more year to go, you would be well-advised to finish.
可是只剩下一年了，你要是明智的话就应该学完。
Not getting the job was a terrible disap-pointment.
得不到那份工作，叫人失望极了。
The search proved difficult, for the puma was often observed at one place in the morning and at another place twenty miles away in the evening.
事实上搜寻工作很困难，因为常常是早晨在甲地发现那只美洲狮，晚上却在20英里外的乙地发现它的踪迹。