sounder

• 形容事物处于良好状态、坚固、结实，或没有损坏、受伤、缺陷；也可指可靠、健全、合理。

Describes something that is in good condition, firm, or free from damage, injury, or defect.

1. Healthy and strongB1formal

   In good health or condition; free from injury or disease.

   健康强壮的

   • After the accident, he was lucky to be sound and unharmed.
   • The doctor declared the patient sound after the check-up.
   • The building's foundation is structurally sound.

   同义词fithalehealthyheartyrobuststurdyvigorouswholesome

   反义词diseasedfrailillinfirmsickunhealthyunsoundweak

2. Sensible and reasonableB2formal

   Showing good judgment; sensible or wise.

   合理的

   • That is a sound investment strategy.
   • She gave me sound advice about my career.
   • His argument is based on sound reasoning.

   同义词cogentjudiciouslogicalprudentrationalreasonablereliablesensiblesolidvalidwise

   反义词foolishirrationalsenselessunsoundunwise

3. Thorough and completeB2formal

   Solid, reliable, or well-founded.

   可靠的

   • The company has a sound financial position.
   • He has a sound understanding of the subject.
   • The plan is sound and should work well.

   同义词cogentcompletelogicalreliablesensiblesolidsubstantialthoroughvalid

   反义词defectivefallaciousfaultyflawedincompleteinvalidshakyunreliableunsoundweak

• 名词，指用于探测、测量水深或发现水下物体的设备或仪器。

A noun referring to a device or instrument used for making soundings, typically to measure the depth of water or to detect objects underwater.

1. Sounding deviceC1formaltechnical

   A device used to measure the depth of water or to detect objects underwater by emitting sound waves.

   声呐

   • The ship's crew used a sounder to map the ocean floor.
   • Modern fishing boats rely on a sounder to locate schools of fish.
   • The echo sounder indicated a depth of 50 meters.

   同义词depth finderfathometersonar