unprotected

1. ADJ An unprotected person or place is not watched over or defended, and so they may be harmed or attacked. (人或地方) 未受保護的; 未設防的

The landing beaches would be unprotected. 登陸的海灘可能沒有設防。

2. ADJ If something is unprotected, it is not covered or treated with anything, and so it may easily be damaged. 無保護的

Exposure of unprotected skin to the sun carries the risk of developing skin cancer. 無保護的皮膚在太陽暴曬下有患皮膚癌的危險。

3. ADJ If two people have unprotected sex, they do not use a condom to protect against sexually-transmitted diseases and pregnancy. 未用避孕套的[ADJ n]

...the dangers of unprotected sex. …未用避孕套的性行爲的危險。