英语词汇“hard-to-come-by”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	hard-to-come-by
释义	hard-to-come-byCOCA³¹⁵¹¹¹⁺⁴BNC²³⁶²¹³⁺¹来之不易；难得
随便看	observer interface observerless observer linearization Observer Line of Sight Observer Mission Update observerO OBSERVER Oldest Human Skulls Unearthed observer pattern observer pilot observer-projection theorem observer ratings observer reliability observer relibility observer-representative Observer Review Observer Role in the OECD observer rs apparatus observer rs eye observer rs handbook observer rs meridian observers observers apparatus observer's apparatus observerscop observerscope