observe的名詞形式

　　雙語例句

　　1.Are there any classes I could observe?

　　有我可以觀摩的課嗎？

　　2.Imposing speed restrictions is easy, but forcing motorists to observe them is trickier

　　限制車速容易，但強制司機遵守這些限速規(guī)定就難辦多了。

　　3.They were careful to observe the proprieties.

　　他們恪守規(guī)矩。

　　4.They observed him entering the bank.

　　他們看見他走進銀行。