unprotected

adj.

无保护（者）的；无防卫的；不受关税保护的；

v.

无保护(unprotect的过去分词)；

unprotected sex不安全性行为

1. An unprotected childhood in a cold world has beaten gentleness out of me.
   在世态炎凉中度过的无人庇护的童年已经把温柔从我的身上赶走了。
2. Sudden bursts of solar radiation can kill an unprotected spacewalker.
   一阵来自太阳的辐射可能夺去一个没有保护的太空漫步者的生命。
3. I wanted to drive home the dangers of unprotected sex.
   我想让你彻底理解无保护性行为的危害性。

Aggregate-Protected and Unprotected Organic Matter Pools in Conventional- and No-Tillage Soils
Constructing Proteins by Dovetailing Unprotected Synthetic Peptides: Backbone-Engineered HIV Protease
Long-term clinical outcomes after unprotected left main trunk percutaneous revascularization in 279 patients
Beliefs about AIDS, use of alcohol and drugs, and unprotected sex among Massachusetts adolescents
Early and mid-term results of drug-eluting stent implantation in unprotected left main.
Sirolimus-eluting stent implantation for unprotected left main coronary artery stenosis: comparison with bare metal stent implantati...
Contemporary percutaneous treatment of unprotected left main coronary stenoses: initial results from a multicenter registry analysis...
Impact of intravascular ultrasound guidance on long-term mortality in stenting for unprotected left main coronary artery stenosis
Synthesis of Functional Polystyrenes by Atom Transfer Radical Polymerization Using Protected and Unprotected Carboxylic Acid Initiat...
Comparison of coronary artery bypass surgery with percutaneous coronary intervention with drug-eluting stents for unprotected left m...