单词	obligation outstanding
释义	obligation outstanding 经待付义务
随便看	hydrogen sulfite ion hydrogensulfites hydrogen sulfur hydrogen sulfurete hydrogen sulphate hydrogen sulphide hydrogen sulphide barrier hydrogen-sulphide corrosion testing chamber hydrogen sulphide damage hydrogen sulphide flavor hydrogen sulphide flavour hydrogen sulphide gas analyzer hydrogen-sulphide odour hydrogen sulphide poisoning Hydrogen sulphide poisoning hydrogen sulphide-proof steel hydrogen sulphides hydrogen sulphide spring therapy hydrogen sulphite Hydrogen Sultide hydrogen supplier hydrogen supply hydrogen supplying system hydrogen supply valve hydrogen suppressed graph