not thick or wide
The paper is very thin and tears easily.
這張紙非常薄,很容易撕破。
not fat; having little body fat
She has a thin body but eats a lot.
她身材很瘦,但吃得很多。
not dense or crowded
The thin forest has few trees.
這片稀疏的森林樹木很少。
watery; not thick
The thin soup needs more ingredients.
這稀薄的湯需要更多食材。
easy to see through
The thin curtain lets light through.
這薄窗簾能讓光線透進來。
having little air
The thin air on the mountain makes breathing hard.
山上稀薄的空氣讓呼吸變得困難。
weak and high-pitched
Her thin voice was hard to hear.
她微弱的聲音很難聽清。
not genuine or strong
He gave a thin smile that didn't reach his eyes.
他露出了一個不真誠的微笑,眼神裡沒有笑意。
dim; not bright
The thin light of dawn slowly filled the room.
黎明微弱的光線慢慢充滿了房間。
poor in quality or amount
The thin selection of books disappointed her.
書籍選擇貧乏讓她感到失望。
in thin slices or layers
Cut the cheese thin for the sandwich.
把奶酪切成薄片做三明治。
to make a liquid less thick
Add water to thin the paint.
加水稀釋油漆。
to become less thick
His hair is starting to thin on top.
他頭頂的頭髮開始變稀疏了。
to reduce in number or density
Thin the plants to give them space to grow.
間苗給植物生長空間。