Ssbd
[医][=single-strand base damage]单链碱基损伤
🗣️ 情景例句
May I check it?
我可以核对一下吗？
The phone is ringing.
来电话了。
The only regular visitors to the monastery in winter are parties of skiers who go there at Christmas and Easter.
冬天常来修道院参观的只有一批批滑雪者。他们在圣诞节或复活节到那儿去。