Cobblestone
n. 圓石, 鵝卵石
? 同義詞
??? 情景例句
What does he say?
他說了些什么？
Generally speaking, a contract cannot be changed after it has been signed by both parties.
一般來講，合同一經雙方簽訂就不得更改。
It is hard for us to realize nowadays how difficult it was for the pioneers.
我們今天很難想像昔日的登山先驅們是多么艱苦。