Powerplant pictogram with different options, you only need to exchange the fuels. I used a nuclear logo and a trash bin from OCAL for this.
可變動力裝置
atom、coal、combustion、current、ecology、electricity、energy、environment、garbage、gas、icon、incineration、nuclear、pictogram、plant、pollution、power、power plant、refuse、waste
原子、煤、燃燒、當前、生態、電力、能源、環境、垃圾、加油站、圖標、焚化、核、圖標、廠、污染、功率、發電廠、垃圾、浪費
資料來源：openclipart ( https://openclipart.org/ )

Watch out for false teachers. They come to you in sheep's clothing, but inwardly they are ferocious wolves.
披著羊皮的狼
animal、contour、costume、disguise、mammal、sheep、villain、wolf
動物、輪廓、服裝、偽裝、哺乳動物、羊、惡棍、狼
資料來源：openclipart ( https://openclipart.org/ )

1 of 4 pictures for Exodus 3:1-12
06出埃及記3：1-12 03
52 Stories of the Bible (for Storying)、beard、Bible、Bible Story Path、burning bush、clouds、Comic characters、desert、God、grass、Israel、livestock、man、Moses、mountains、robe、Rock、sandals、sheep、staff
52個聖經故事（故事）、鬍子、聖經、聖經故事路徑、燃燒的叢林、雲、漫畫人物、沙漠、神、草、以色列、家畜、人、摩西、山、連衣裙、岩石、涼鞋、羊、員工
資料來源：openclipart ( https://openclipart.org/ )

This image was donated by Pearson Scott Foresman, an educational publisher, to Wikimedia Commons, and is thereby in the Public Domain. --- See http://commons.wikimedia.org/wiki/Category:Pearson_Scott_Foresman_publisher
獚
animal、biology、black and white、dog、dog breed、Drawing refs、externalsource、line art、mammal、outline、pet、psf、wikimedia commons、zoology
動物、生物學、黑與白、狗、狗品種、繪圖參考、外部源、線條藝術、哺乳動物、大綱、寵物、PSF、維基媒體公地、動物學
資料來源：openclipart ( https://openclipart.org/ )

Saw blade created following tutorial - vector.tutsplus.com/tutorials/illustration/quick-tip-how-to-illustrate-a-saw-blade-with-inkscape/
鋸片
blade、circular、cutting、disc、saw、sharp、shiny、tool
刀、圓、切割、圓盤、鋸、尖銳、閃亮、工具
資料來源：openclipart ( https://openclipart.org/ )

A triangle made from 15 snooker balls, by Jarno Vasamaa. From old OCAL site.
15球
ball、balls、game、play、pool、snooker、sport、triangle
球、球、遊戲、玩、池、阻撓、運動、三角形
資料來源：openclipart ( https://openclipart.org/ )

funny airplane one
有趣的飛機之一
aeroplano、airplane、cartoon、Funny、funny、MeineFavs、passenger、transportation
飛機、飛機、動畫片、滑稽、滑稽、MeineFavs、乘客、運輸
資料來源：openclipart ( https://openclipart.org/ )

I made this for my LibGdx project. It includes flat design of various trees, butterflies and mushrooms.
平面設計
art book cover、butterfly flat、cover page、flat、flat design、flat kit、forest、forest flat、game menu、nature flat、tree flat
藝術書籍封面、蝴蝶平、封面、平面、平面設計、扁平的工具包、森林、森林公寓、遊戲菜單、自然平坦、樹平
資料來源：openclipart ( https://openclipart.org/ )

A water drop character with an expression of wonder.Wow!
水滴奇蹟
drop、drops、water、wonder
下降、滴劑、水、奇蹟
資料來源：openclipart ( https://openclipart.org/ )

A vectorized version of the (in)famous painting by Leonardo DaVinci. Source : http://en.wikipedia.org/wiki/File:Mona_Lisa,_by_Leonardo_da_Vinci,_from_C2RMF_retouched.jpg
蒙娜麗莎
Art、DaVinci、Famous-people、Leonardo、Lisa、Mona、Painting、Renaissance
藝術、達芬奇、著名的人民、萊昂納多、更、莫娜、繪畫、再生
資料來源：openclipart ( https://openclipart.org/ )