Theretofore
adv. 在那以前, 到那时为止
🗣️ 情景例句
Hey, why don't we go out
嘿，我们何不出去
It's earier to run down the hill than go up.
下山容易上山难。
After lunch Aunt Huang came in and she looked worried.
午饭后黄阿姨来了，她面带愁容。