Sentinel pile
[医] 前哨痔(肛裂下端的痔)
🧩 词语组成解析
sentinel
['sentinl]
n. 岗哨，哨兵;
🗣️ 情景例句
I woke up when I heard someone speak.
一听到有人说话我就醒了。
Christmas falls on a Friday this year.
今年的圣诞节是星期五。
Jim couldn't decide where to go for his holidays. He didn't go anywhere in the end.
几亩决定不了去哪渡假，最终他哪儿也没去。