Lactic acid series
[建] 乳酸系, 邻位羟基酸系
🧩 词语组成解析
lactic
['læktik]
adj. 乳的;
🗣️ 情景例句
Does he know you're here?
他知道你在这 吗？
Have you drunk any fruit juice.
你喝过果汁吗？
it is extremely difficult to estimate the true value of the services which people perform for us.
但要估算别人为我们为所提供的服务的价值却是极其困难的。