Oleorefractometer
油折射计
🗣️ 情景例句
A stitch in time saves nine.
亡羊补牢，犹为未晚。
I ask hin to tell me everything he saw.
我要求他告诉我，他所看到的每件事情。
He spent a miserable day in bed thinking of all the fun he was missing.
他在床上郁郁不乐地躺了一天，想着他错过的种种欢乐。