ducked down
plural of tufted duck
simple past tense and past participle of duck down
A compound thermionic valve containing a triode and tetrode; was used in superheterodyne radio receivers.
plural of Englishman
先生が通りかかると、生徒たちは見つからないように低い塀の後ろに身をかがめた。
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DiQt
Free
★★★★★★★★★★