Back-and-forth
反复地, 来回地
🧩 词语组成解析
back
[bæk]
n. 背，背部;背面，反面;后面，后部;（椅子等的）靠背;
vt. 使后退;支持;加背书于;下赌注于;
vi. 后退;倒退;
adj. 背部的;后面的;以前的;拖欠的;
adv. 以前;向后地;
and
[ənd, ən,ænd]
conj. 和，与;而且;于是，然后;因此;
forth
[fɔrθ]
adv. 向前，向前方;露着的，往外的;[废语]出外，离家;
prep. 出自，从…离开;
🗣️ 情景例句
Can you tell me something about the student body?
谁是学生会主席？
I remember the girl whose father earns $ 10000 a month.
我记得那个女孩的父亲一个月赚一万元。
Assuming that his family had been killed during an air raid, Hans settled down in a village fifty miles away where he had remained ever since.
汉斯以为全家人都在空袭中遇难，于是便在距此50英里外的一座村子里定居下来，直至当日。