Back-yard
n. 后院
🧩 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;
yard
[jɑd]
n. 院子;码（等于3英尺或36英寸或0。9144米）;场地;帆桁;
🗣️ 情景例句
He seems to be getting on very well at school.
他在学校似乎过得很好。
You'll hurt your finger, if you don't take care.
你不专心的话，就会伤到你的手指。
as the wave leaves the particles behind back to its starting point again.
当波浪把微粒留在身后时又回到出发点。