单词	frowned
释义	同frown
随便看	zero-leak zero leakage zero length zero-length zerolength zero length buffer zero-length launcher zero length launching zero-length launching zero length launching (zell) zero-length spring gravimeter zero level zerolevel zero level address zero-level address zeroleveladdress zero level addressing zero-level addressing zero-level channel zero-level document zero level symbol zero level transmission reference point zero lift zero lift angle zero-lift angle