Spectroactinometor
分光感光计
🗣️ 情景例句
Do you feel stronger?
你感到强壮一些了吗？
A watched pot(pan) is long in boiling.
心急水不沸；盼得越切，来得越迟。
The famous monastery of St.Bernard, witch was founded in eleventh century, lies about a mile away.
11世纪建造的著名的圣伯纳德修道院位于离山口1英里远的地方。