Squeaking at soft–rigid frictional interfaces

· · 来源:tutorial资讯

與葡萄牙語一樣,我每天要完成四個簡短的任務與測驗;但這次我需要將 12 個完全聽不懂的聲音,配對到 12 個從未見過的物體圖片上。後來我才得知,這些物體與詞彙都不是真實存在的。我口中念出的其實是中文的聲調,而聲調是中文的重要特徵:不同聲調會改變一個詞的意思。

二是神舟二十三号飞行乘组中的1名航天员,将开展一年期驻留试验,而目前均为半年。

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Microbiologists have been growing microbes on agar plates for nearly 150 years, but agar’s discovery dates back to a happy accident in a mid-17th-century kitchen. Legend has it that on a cold winter day, a Japanese innkeeper cooked tokoroten soup, a Chinese agar seaweed recipe known in Japan for centuries. After the meal, the innkeeper discarded the leftovers outside and noticed the next morning that the sun had turned the defrosting jelly into a porous mass. Intrigued, the innkeeper was said to have boiled the substance again, reconstituting the jelly. Since this discovery, agar has become a staple in many Japanese desserts, from yokan to anmitsu.

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Modernising phrases