He's a reliable person. There wouldn't be any trouble cooperating with him.
Examples (Wiktionary)
Mandarin
竭力提供准确而可靠的资讯
竭力提供準確而可靠的資訊
jié lì tí gōng zhǔn què ér kě kào de zī xùn
to strive to provide accurate and reliable information
Mandarin
在中国社会的各阶级中，农民是工人阶级的坚固的同盟军，城市小资产阶级也是可靠的同盟军，民族资产阶级则是在一定时期中和一定程度上的同盟军，这是现代中国革命的历史所已经证明了的根本规律之一。
在中國社會的各階級中，農民是工人階級的堅固的同盟軍，城市小資產階級也是可靠的同盟軍，民族資產階級則是在一定時期中和一定程度上的同盟軍，這是現代中國革命的歷史所已經證明了的根本規律之一。
zài zhōng guó shè huì de gè jiē jí zhōng ， nóng mín shì gōng rén jiē jí de jiān gù de tóng méng jūn ， chéng shì xiǎo zī chǎn jiē jí yě shì kě kào de tóng méng jūn ， mín zú zī chǎn jiē jí zé shì zài yī dìng shí qī zhōng hé yī dìng chéng dù shàng de tóng méng jūn ， zhè shì xiàn dài zhōng guó gé mìng de lì shǐ suǒ yǐ jīng zhèng míng le de gēn běn guī lǜ zhī yī ．
Among all the classes in Chinese society, the peasantry is a firm ally of the working class, the urban petty bourgeoisie is a reliable ally, and the national bourgeoisie is an ally in certain periods and to a certain extent. This is one of the fundamental laws established by China's modern revolutionary history.
Mandarin
至于有些网友说的“他看起来很直”……旁友，世界上没有百分百可靠的gay达啊
至於有些網友説的“他看起來很直”……旁友，世界上沒有百分百可靠的gay達啊
zhì yú yǒu xiē wǎng yǒu shuō de “ tā kàn qǐ lái hěn zhí ” ． ． ． ． ． ． páng yǒu ， shì jiè shàng méi yǒu bǎi fēn bǎi kě kào de ｇａｙｄá a
To those netizens saying “he looks straight”... Look, buddy, there is no gaydar that is 100% reliable in this world