Fourthly
adv. 第四(列举条目等时用)
✅ 同义词
🗣️ 情景例句
I don't get it.
我不明白。
I haven't heard from him for a long time.
我很久没有收到他的信了。
Most of the earth's surface is covered by water.
大部分的地球表面被水覆盖着。