刻舟求剑的意思是指在剑落水的船帮上刻上记号，船停后，从刻记号的地方下水去找。比喻不会随着事物的变化来进步性的看待事物，仍然用旧的、不变的眼光看待事物。出自《吕氏春秋·察今》。
Engraving the boat for the sword means to engrave a mark on the boat gang where the sword fell into the water. After the boat stops, go into the water from the place where the mark is engraved. Metaphor does not look at things progressively as things change, but still looks at things with the old and unchanging eyes. From “Lu Shichunqiu·Chajin”.
Types of Lights , 灯光的种类 , dēng guāng de zhǒng lèi ：
table lamp , 台灯 , tái dēng 。
floor lamp , 落地灯 , luò dì dēng 。
chandelier , 吊灯 , diào dēng 。
wall lamp , 壁灯 , bì dēng 。
headlights , 车灯 , chē dēng 。
street lights , 路灯 , lù dēng 。
灯光，有两种解释：1.灯的亮光。2.指舞台上或摄影棚内的照明。灯光大致可以分为高光、聚光、散光、柔光、强光、焦点光等。
There are two explanations for lighting: 1. The light of the lamp. 2. Refers to the lighting on the stage or in the studio. Light can be roughly divided into high light, concentrated light, astigmatism, soft light, strong light, focus light and so on.