Pharosage
光通量密度, 照度
🗣️ 情景例句
I'm glad I ran into you. Where have you been hiding lately?
我很高兴碰见你，你躲到哪里去了？
No. Behave yourself, Jack.
别胡闹，杰克。
Was the peach ripe or green?
桃子是熟的还是生的？