Cycolid tooth
[機] 擺線齒
?? 詞語組成解析
[機] 擺線
tooth
[tu:θ]
n. 牙;齒;齒狀部份;
vt. 給…裝齒;
vi. 嚙合;
??? 情景例句
Use a dictionary and grammar guide constantly.
經(jīng)常使用字典和語法指南。
As soon as he comes, we'll let him know.
他一來，我們就告訴他。
Oh, thank you.
謝謝！