This letter opened a chink of hope.

这封信带来了一线希望。

Chink ( v. ) close up the chinks in

堵塞（裂缝、缝隙）

He had found the weak chink in my armor.

他找到了我的盔甲上脆弱的缝隙。

His love of drink is his chink in the armor.

他这人的弱点就是爱喝酒.

She must have a chink in her armour somewhere.

她肯定在什么地方有弱点.

Chink a narrow opening, such as a crack or fissure.

裂缝:如裂缝或缝隙之类狭窄的裂口.

Sunlight enters the room through a chink in the curtain.

阳光穿过窗帘的缝隙照射到室内.

Through a chink she could see a bit of blue sky.

从缝隙中他可以看到一线蓝天.

There must be a chink in the armour somewhere. Not here!

一定在什么地方有破绽。不在这里！

Chink:a slight, metallic sound, as of coins rattling in a pocket.

叮铛声：一种象口袋中硬币碰撞发出轻微的金属声。