I came across an interesting paper online about "Future Chocolate" . Actually, I have a huge sweet tooth and chocolate is one of my favorite food. So, I would like to summarize and share some of the interesting points here. It said that future chocolates don't need cacao. Cacao trees are grown within about 20 kilometer south north of the equator, but they are well-known that it's very hard to grow them. Ghana and Cote d'Ivoire account for over 50% of the supply of cacao beans. However, the weather in the plantation for cacao beans is unstable due to climate change and it threatens the supply of chocolate across the world. Scorching heat is also hitting growing environment of cacao beans hard. That's why the food development as a substitute for chocolates has been attracting a lot of attention lately. Some companies have been finding more sustainable solutions. One of them finally reached two materials. They are sunflower seeds and oats. Unlike cacaos only grown around the equator, sunflower seeds and oats are possible to grow everywhere. On top of that, they need less wafer than cacao beans plantation. It feels like we eat authentic chocolates because the company was particular about flavors and components . The paper said the chocolate has already been commercialized. I really try it in the future.

What do the two prepositions 'in' marked in the picture mean?

I'd like to post an old and well-known poem written by the non-less famous poet, Du Fu. It entitled " Facing Snow " (对雪）。This poem touches me because I've worked twice in Xi'an (西安）and I've seen snow there during the month of february when I arrived there the first time in 2002. I miss that place, the students, the villagers from the little village of Taiyigong (太乙宫）, the Emerald mountain (翠华山）， the succulent mutton skewers and soup (羊肉串；羊肉泡馍）， 等等。。。 对雪 （杜甫） 战哭多新鬼，愁吟独老翁。 乱云低薄暮，急雪舞回风。 瓢弃尊无绿，炉存火似红。 数州消息断，愁坐正书空。 Facing the Snow (Du Fu) There are many new ghosts crying in the battle, and the old man is alone chanting in sorrow. The clouds are low at dusk, and the snow dances in the wind. The gourd is discarded and the cup is green, but the fire in the stove is red. There is no news from several states, and I sit and write in sorrow.

English students, try this. Topic: fixed expressions

a piano teacher asked me which song I was working on. I showed her the notation. she asked me what language it was, I said it was Mandarin Chinese but written in Wade–Giles Pinyin system.she asked what the name the song was, I answered "secret fragrance". "Sha Baoliang's?". She asked. "Jiang Kui's." she said "such an old song. from the Nan (Southern) Song dynasty." indeed. every single winter, I can't help myself from reciting Jiang Kui's "secret fragrance". "I sigh that the road is too long to send a blossom, and the evening snows begins to pile up." she asked me what the musical instrument he played originally for this song. I said "Xiao (flute)". she said "Jiang Kui was really talented. but it's rare for such a young person like you like him so much," I said "you wouldn't understand his song lyrics, if you haven't experienced in unemployed wandering." and she played another score which was rediscovered by Jiang Kui (nishang zhongxu diyi). I especially like the lyrics for this song, which was written when he was almost at his end.