cloak

cloak的解释
n. 斗蓬,宽大外衣,掩护
v. 遮掩,隐匿
cloak的例句
His friendly behaviour was a cloak for his evil intentions.
他的友好行为不过是他险恶用心的伪装。

Their negotiations were cloaked in secrecy.
他们的谈判在秘密进行。