strong （强壮的），相反的单词weak（虚弱的，弱小的）。

strong造句：He is a strong man。他是一个强壮的男人。weak造句：And even stumbling speech may strengthen a weak tongue.即使是磕绊的话语也会强壮无力的舌头。例句：

1. I was too weak to move or think or speak我太虚弱了，无法动弹，无法思考，也无法说话。《柯林斯高阶英汉双解学习词典》2.Until the beating, Cantanco's eyesight had been weak, but adequate挨打前坎坦科的视力就一直很弱，不过也还勉强看得见。《柯林斯高阶英汉双解学习词典》3.He was a nice doctor, but a weak man who wasn't going to stick his neck out他是位为人和蔼的医生，但胆小怕事，不敢冒什么风险。《柯林斯高阶英汉双解学习词典》4.His weak voice was almost inaudible他的声音微弱，几乎听不见。《柯林斯高阶英汉双解学习词典》5.The owner said the bird may have escaped through a weak spot in the aviary鸟的主人说这只鸟可能是从鸟舍一处不结实的地方逃走的。