Because he's strong
强壮───strong;他───he
He's the strong silent type.───他是那种强悍而沉默寡言的人。
Butterflies can be strong flyers.───蝴蝶的飞翔力强。
The team's midfield looks strong.───这个球队的中场显得很强大。
it forms a group of a large number of areas, in aesthetic activities and cultural life of the theory show a strong vitality.───在古典美学领域，以“游”为中心，形成了一个数量可观的范畴群，其强大的理论活力表现在审美活动与文化生活的诸多方面。
There is such a strong resistance to honour their mother that it becomes apparent that they rather die than to honour their mother.───她们对尊敬自己的母亲有着很强烈的抵触，而且很明显，她们宁愿死去也不愿去对自己的母亲表达尊敬。
He said the U. S. team has strong tactics, discipline and is very physical.───他说美国队战术严谨、纪律严明、身体素质也非常好。
The battle is to the strong.
She has a strong sense of justice and fairness.
Strong reasons make strong actions.
Peer pressure is strong among young people .
The competition is very strong this time.