Alstonia constricta
[医] 澳洲鸡骨常山
🧩 词语组成解析
夹竹桃属; 鸡骨常山属
🗣️ 情景例句
I had the appointment written on my calendar and was looking forward to the occasion.
我早已把这个约会写在我的日历上而且一直期待着这一时刻。
Kept waving to her mother until the train was out of sight.
不断地冲她的母亲挥手，直到火车驶出了视线。
Yes, I am.
是的。