Bibasic
a. 二元的, 二碱价的\\n[医] 二硷的, 二元的, 二代的
🗣️ 情景例句
Affectionately, Uncle John.
爱你的,约翰叔叔。
He learns English every day.
他每天都学英语。
The search proved difficult, for the puma was often observed at one place in the morning and at another place twenty miles away in the evening.
事实上搜寻工作很困难,因为常常是早晨在甲地发现那只美洲狮,晚上却在20英里外的乙地发现它的踪迹。
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