unassuming
adj. 谦逊的；不装腔作势的；不出风头的
例句
He's a man of few words, very polite and unassuming.
他不爱说话，非常有礼貌，也不装腔作势。
《柯林斯英汉双解大词典》
He was a small and by all appearances an unassuming man.
他是个个子小并且从一切表象看来不装腔作势的人。
Advances in science and technology can launch from unassuming springboards.
科学技术的进步可以借助微不足道的跳板来实现。
