Rcs
abbr. 雷达横截面（Radar Cross-Section）；皇家外科医生协会（Royal College of Surgeons）
🗣️ 情景例句
I think I've got them.
我想我已经拍齐了。
Put your books down on the table.
在桌子上放下你的书。
but ten months later, she received a letter from a girl in Holland.
但10个月以后，她收到了荷兰一位姑娘的来信。