发音
舌尖紧贴上牙龈
声带震动

单词
day deal deer
bad bed child
old side wood
feed find good
study today under
hide mood need
down dress during
model order product
already condition consider
development different dinosaur

句子
The bed is old.
The child feels good.
We can order food online.
Don’t study under pressure.
The dress is very expensive to buy.

同音
[d]
ad add
dear deer
bad bade
billed build
board bored
band banned
desert dessert
allowed aloud

辨音
[d] [t]
bid bit
dry try
bad bat
bed bet
had hat
mad mat
ride right
fade fate
code coat
down town

[d] [ð]
day they
den then
dare there
load loathe
ladder lather
breed breathe
dough though
wordy worthy