Ost
abbr. 科学技术局（Office of Science and Technology）
🗣️ 情景例句
Make a right at the stop sign.
就在停车再开标志那里向右拐。
A handful of common sense is worth a bushel of learning.
少量的常识，当得大量的学问。
The refrigerator is white.
冰箱的颜色是白的。