| 奈 |
nài miǎo | nanosecond, ns, 10^-9 s (Tw) / PRC equivalent: 纳秒 |
| 奈 |
nài | used in expressions that convey frustration and futility, such as 无奈 and 莫可奈何 (literary) / used for its phonetic value in writing foreign words |
| 秒 |
miǎo | second (unit of time) / arc second (angular measurement unit) / (coll.) instantly |