She hid her true feelings behind a shield of cold indifference.
她把自己的真實感情掩藏在一副冷漠的`外表後面。
He hid his face in his hands.
他用手捂住了臉。
He hid behind a false identity.
他隱姓埋名。
She felt sure the letter had some hidden meaning.
她確信那封信中有言外之意。
There are fears of a hidden agenda behind this new proposal.
人們擔心這一新提議的背後有不可告人的目的。