1.tunneler  2.tunnel(l)er  3.rocktunnel(ling)machine  4.tunnelmachine  

道的英語翻譯：

path; road; doctrine; Tao; say; talk; way; method
【醫(yī)】 canal; canales; canalis; meatus; passage; path; pathway; tract; tractus
viae

掘的英語翻譯：

burrow; dig; grub; pick

進的英語翻譯：

advance; come into; enter; move forward; receive; resent; score a goal
【經】 index numbers of value of imports or exports

機的英語翻譯：

chance; crucial point; engine; machine; occasion; organic; pivot; plane
flexible
【醫(yī)】 machine