Nanograms
(nanogram 的复数) [化] 纳克
🗣️ 情景例句
How are you?
你好吗？
What would you have done last night if you hadn't had to study?
如果昨晚你不必学习你会做什么？
the total absence of fishing boats around the oil rigs.
钻井平台周围根本没有捕鱼船只。