Cholestric liquid crystal
[机] 螺旋性液晶
🧩 词语组成解析
🗣️ 情景例句
Please get me a cup of coffee.
请给我倒一杯咖啡。
It's a quarter past five.
现在是五点一刻。
He can get up for about two hours each day, but you must keep the room warm.
他每天可以起来两个小时，但您必须保持房间温暖。