sufficient

adj

1. of a quantity that can fulfill a need or requirement but without being abundant

e.g. sufficient food

1. 足够的;充足的
If something is sufficient for a particular purpose, there is enough of it for the purpose.

e.g. One metre of fabric is sufficient to cover the exterior of an 18-in-diameter hatbox...
一米布足以包裹住直径为 18 英寸的帽盒。
e.g. Lighting levels should be sufficient for photography without flash...
光照亮度应达到不开闪光灯便可以清楚拍照的程度。

2. (理由、条件)充足的，充分的
If something is a sufficient cause or condition for something to happen, it can happen.

e.g. Discipline is a necessary, but certainly not a sufficient condition for learning to take place.
纪律是有必要的，但绝对不是保证学习成效的充分条件。

1. 足够的：即使母体传递之染色体标记并不是引致同性恋的必需的(Necessary)或足够的(Sufficient)条件,但这并不能否定同性恋为先天产生之假说 ; 可能存在著除该染色体外的先天因素,亦可能该染色体只是可能引致同性恋倾向的因素之一而已