Diphthongs
n. 双元音( diphthong的复数形式 )
🗣️ 情景例句
Nice to meet you, Susan.
很高兴见到 Susan。
Do you have anything to declare?
你有东西要申报关税吗？
They were expecting their sixth child and were faced with even more pressing economic problems.
第6个孩子即将问世，他们面临着更为严峻的经济问题。