🧩 词语组成解析
sir
[sɝ]
n. 先生;（用于姓名前）爵士;（中小学生对男教师的称呼）先生;老师;
fred
[[fred]]
n. 佛瑞德（男子名）
n. 霍伊尔纸牌游戏书
🗣️ 情景例句
Canada has the most beautiful waterfalls in the world.
加拿大有世界上最壮观的瀑布。
Would you like me to get you a cab?
要我替你叫出租汽车吗？
it has to develop (partly by means of touch) the ability to judge roughly three-dimensonal distances.
儿童必须发展（部分通过触觉）粗略判断三维空间距离的能力。