第三人称单数： bowstrings
过去式： bowstringed bowstrung
过去分词： bowstringed bowstrung
现在分词： bowstringing

It is missing a strong and flexible bowstring .

缺少柔韧而坚固的弓弦。

After shooting , take out the auxiliary-bowstring firstly , then take out the main bowstring .

击发后，先拆下副弦，再拆主弦。

The traditional software that reduce toxin is nonfeasance almost to the trojan , because this needs new method bowstring vaulting horse .

传统杀毒软件对木马几乎是不作为的，因此需要新的手段绞杀木马。

He notched an arrow , pulled back the bowstring , and let it go .

他创下一个箭头，拉开弓弦，让他去。

If you have the bowstring stretched too tightly , you will soon break the bow .

要是你一直把弓弦绷得太紧，你的弓很快就会断裂。