Tronics
低温电子学
🗣️ 情景例句
It's good that you went back.
你回去是对的。
It seems to be clearing up.
看来天要放晴了。
They also found out that bees fly a maximum distance of 3.2 kilometres between their hive and a feeding place.
他们还发现蜜蜂从蜂箱到喂食点的最大飞行距离是3。2公里。