Direction selectivity
[化] 方向选择性
🧩 词语组成解析
n. 选择性, 选择度\\n[化] 选择性
🗣️ 情景例句
Wrong number.
打错电话了。
Fall sick and you will see who is your friend and who is not.
困难见友情。
The next evening the man upstairs came home from work late as usual.
第二天晚上，楼上人和平时一样很晚才下班回家。