In this task, you are given a sentence or phrase in Xhosa. You must translate it to English in a way that is equivalent in terms of meaning and grammatically correct.

Kunyanzelekile ukuba ingcali yolwandle i chazelwe amaqhina amabini awenza isiseko samaqhina asetyenziswa emkhosini wenqanawa ukususa ekugqibeleni kwentambo, nokudibanisa zombini zibizwa ukususa umsonto nokuudlulisa nokususa ekugqibeleni iqhina entanjeni nokususa iqhina lomsonto.
It is intended here to introduce the seaman to the two knots which form the basis of most other knots used in the Fleet - the crown knot and wall knot, and also to combinations of the two called the wall and crown knot and crown and wall knot.

Le yenziwa ngokwemfanelo kwakubalulekile ngokuqongophala konthi ngokwejongo.
This was made necessary by the acute shortage of timbers for the purpose.

Ezi zazizezikhetheke kakhulu izikhephe.

These were very specialized boats.