Ifdef
n. 如果定义了
🗣️ 情景例句
The new students seem to be shaping up quite nicely.
新生们看来表现得相当不错。
You'll never be able to fill your father's shoes.
你永远也替不了你父亲的工作。
After putting it on, Mrs.Richards went downstairs.
理查兹夫人穿上化装服后下了楼，