espial
n. 觀察,偵探,間諜活動
1. the act of detecting something; catching sight of something
When the waggon had passed on, Gabriel withdrew from his point of espial.
當馬車繼續前進的時候, 加布裡埃爾也離開了他窺探的地點.
You will have a bit espial to see how the temperature change.
稍加觀察就可以看出溫度是怎樣變化的.