Ljm
液体喷射加工
🗣️ 情景例句
because we have a little surprise for you today.
因为今天我们要给各位一项惊喜。
She feared the arrival of the bill-collector.
她害怕收帐人来。
Up to now, historians have assumed that calendars came into being with the advent of agriculture, for then man was faced with a real need to understand something about the seasons.
历史学家迄今认为日历是随农业的问世而出现的，因为当时人们面临着了解四季的实际需要，