Polar radiation
[医] 极放射
🧩 词语组成解析
🗣️ 情景例句
Now point to the buildings.
现在请指着那些建筑物。
How long do you watch TV every day?
你每天看多长时间电视？
After entering the narrow gap on the plateau, they climbed down the steep sides of the cave until they came to narrow corridor.
他们从高原上的窄缝进去，顺着笔直陡峭的洞壁往下爬。来到一条狭窄的走廊上。