Sims's speculum
[医] 席姆斯氏窥器(鸭嘴形阴道窥器)
🧩 词语组成解析
n. 金属镜, 反射镜, 扩张器\\n[医] 窥器, 张开器; 透明隔; 翼斑, 翼镜(鸟)
🗣️ 情景例句
She always reminds him of Grandma. Susan
总是让他想起奶奶。
Who do you think you are?
你算什么东西？
and a period (which is the time it takes a wave crest to travel one wave length).
和周期（浪峰走过一个波长所需的时间）。