Photodegrade
v. (使)光致分解,(使)光降解
🗣️ 情景例句
I've put an X next to the place where you should sign.
我已在你该签名的地方后面标示了X。
Old wood is best to burn,old book to read.
老柴好烧，老书宜读。
you're likely to get five different answers, --
你很可能得到5种不同的答复，