Pentelide
第五族元素化物
??? 情景例句
You're very generous.
你真慷慨。
Hello. Could I please speak to Miss Davis?
喂，麻煩你，請(qǐng)戴維斯小姐聽電話。
The clouds had come down so suddenly we had no warning.
烏云突然出現(xiàn)，我們絲毫沒有覺察。