Scn
n. 视交叉上核
🗣️ 情景例句
At 4, but I have to leave by 3:00 to get there on time.
四点，不过我三点必须离开，才能准时到那里。
Did you go play ball last night?
你昨晚去玩球了吗？
There is a bridge over the river.
河上有一座桥。