Thfa
[化] 四氢叶酸
🗣️ 情景例句
Can you tell me about how long it'll take to get to...?
你能告诉我到……有多远吗？
How did he get away with cheating?
他是如何考试做弊而未被发现？
Could you come here, please? I want some help.
你能来这儿一下吗？我需要帮忙。