Fastnesses
n. 牢固( fastness的复数形式 ); 固定; 要塞; 堡垒
🗣️ 情景例句
Remember to lock your door and windows when you leave the house.
出门前记得锁好门窗。
To navigate
航海
'And you didn't notice anything unusual?'
“您没有注意到有什么异常情况发生吗？”