Clindrosymmetric
圓柱對稱的
??? 情景例句
How do I address you?
我該怎樣稱呼你？
The goods were carefully packed and shipped here in excellent condition.
貨物包裝得很仔細，裝船很小心，在這兒完好無損。
Then wait until the fire is out.
然后，等火熄滅。