Gum retraction
[医] 龈退缩
🧩 词语组成解析
gum
[ɡʌm]
n. 口香糖;树胶;黏胶;牙龈;
vt.& vi. 胶合;涂以树胶;使…有粘性;
retraction
[[ri'trækʃən]]
n. 缩进, 撤回\\n[医] 退缩, 缩回
🗣️ 情景例句
There's a lot of good things about suburban living.
郊区生活是有许多优点。
How much should people demand of their governments?
国民对其政府应该要求多少呢？
but we were afraid that the strength of the current would prevent its landing anywhere before it became exhausted.
但我们担心，洪水力量将使它上岸之前就筋疲力尽了。