Pentetic acid
[化] 三胺五乙酸
🧩 词语组成解析
🗣️ 情景例句
They are eager to learn English.
他们急着要学英语。
She fears Tom will drop out of school.
她担心汤姆会休学。
'At what time did you arrive at the station?'
“您几点钟到的火车站？”