Backscattered
反(背)向散射的
🗣️ 情景例句
with one real intergenerational program.
用一套真正跨辈份的活动。
I ought to stay at home.
我应该留在家中。
No matter what the conditions were, he believed that a car should be driven as fast as it could possibly go.
他认为不管路面情况如何，车必须以最高速度前进。