Magnaglo
电磁紫外线探伤法, 玛格纳络磁性粉末
🗣️ 情景例句
A red sky at night indicates fine weather the following day.
晚上天边红预示着明早天气好。
It's January the 15th, 1999.
今天是1999年1月15日。
There are some good apples over there.
那边有些好苹果。