Observ
abbr. observation 观察; 观测; observatory 天文台; 气象台
🗣️ 情景例句
He made a pretty fortune by selling all his land.
他卖了所有的土地发了大财。
Friends are lost by calling often and calling seldom.
交往过密过疏，都会失去朋友。
It may be cheaper.but it takes a long time.
可能是便宜些，但花的时间长。