Permaphase
带硅氧烷聚合物层的色谱固定相
🗣️ 情景例句
They'll be here soon, and then we'll eat.
他们马上就到。他们一到就开饭。
Lost sleep
失眠
After lunch Aunt Huang came in and she looked worried.
午饭后黄阿姨来了，她面带愁容。