Fastnesses
n. 牢固( fastness的复数形式 ); 固定; 要塞; 堡垒
🗣️ 情景例句
You don't?
你没打？
Where am I supposed to pay the excess train fare?
我应该在哪里补票？
A burst of activity associated with the laying of submarine cables soon confirmed the Challenger's observation that many parts of the ocean were two to three miles deep,
海洋中很多地方可深达两三英里，