Back-cross
[医] 反交
🧩 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;
cross
[krɔs]
n. 十字架;十字形饰物;杂交品种;痛苦;
vi. 交错而行;横渡;越境;
vt. 杂交;横跨，穿越;划掉;使相交;
adj. 坏脾气的， 易怒的;相反的，反向的;
🗣️ 情景例句
I'm so busy that I don't get around to it.
我忙得找不出时间去做它。
I worked at the grocery store yesterday.
我昨天在杂货店工作。
The conference was very well organized. Everything began and finished on time.
会议安排的很好。开始和结束都准时。