Phytoactinometer
光合光量計
??? 情景例句
We have a live-in doctor if there's a problem I can't handle.
假如我遇到不能解決的問題 ，我們還有位駐家醫生。
Hoist your sail when the wind is fair.
隨機應變。
it cannot judge distances, depths.
不會判斷距離和深度。