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He bent down and undid the laces of his shoes.

弯腰鞋带。

He loosened his collar of his overcoat.

了大衣领口。

I started to try and untangle the mystery.

我始尝试这个谜。

Science can disclose the mysteries of nature.

科学能自然界的奥秘。

He unwound the bandage from his ankle.

将绷带从脚踝上。

Davy had finished ravelling out his herring net.

维已经鲱鱼网的缠结。

We all had a shot at solving the riddle.

我们都试图要这个谜。

He undid the string round a parcel.

了绑包裹的绳子。

Can you unfasten the lock catch of a box?

你能箱子的锁扣吗?

The fishing lines had become hopelessly entangled.

鱼线缠，没办法。

I reached the horses and untethered them.

我走到马旁它们的系绳。

She undid the string round the parcel.

她了绕包裹上的绳子。

The fisherman cast off the rope and set the boat adrift.

渔夫缆绳, 让船漂流而去。

Who can separate these entangled ropes for me?

谁能为我把这些绕的绳子?

The ropes were entangled so I was not able to untie the parcel.

"绳子缠了,所以我没能包裹。"

Standing up,he unbuckled his belt,and spread it laden across his waist.

站了来,腰带,带子的头垂到腰部以下。

Unbuckle your pack's waistbelt before starting.

涉水前要你的背包腰带。

The package came undone.

行李了。

He untied the ropes.

了绳子。

She prepared to undo the band of cloth around his arm which had served as tourniquet.

她准备缠胳臂上止血的布带。